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2. A data‐driven examination of apathy and depressive symptoms in dementia with independent replication

Author

Da Silva, Miguel Vasconcelos, Melendez‐Torres, Gerardo Javier, Ismail, Zahinoor, Testad, Ingelin, Ballard, Clive, Creese, Byron, Weiner, Michael, Aisen, Paul, Petersen, Ronald, Jack, Clifford R, Jagust, William, Trojanowki, John Q, Toga, Arthur W, Beckett, Laurel, Green, Robert C, Saykin, Andrew J, Morris, John, Shaw, Leslie M, Liu, Enchi, Montine, Tom, Thomas, Ronald G, Donohue, Michael, Walter, Sarah, Gessert, Devon, Sather, Tamie, Jiminez, Gus, Harvey, Danielle, Bernstein, Matthew, Fox, Nick, Thompson, Paul, Schuff, Norbert, DeCArli, Charles, Borowski, Bret, Gunter, Jeff, Senjem, Matt, Vemuri, Prashanthi, Jones, David, Kantarci, Kejal, Ward, Chad, Koeppe, Robert A, Foster, Norm, Reiman, Eric M, Chen, Kewei, Mathis, Chet, Landau, Susan, Cairns, Nigel J, Householder, Erin, Reinwald, Lisa Taylor, Lee, Virginia, Korecka, Magdalena, Figurski, Michal, Crawford, Karen, Neu, Scott, Foroud, Tatiana M, Potkin, Steven, Shen, Li, Kelley, Faber, Kim, Sungeun, Nho, Kwangsik, Kachaturian, Zaven, Frank, Richard, Snyder, Peter J, Molchan, Susan, Kaye, Jeffrey, Quinn, Joseph, Lind, Betty, Carter, Raina, Dolen, Sara, Schneider, Lon S, Pawluczyk, Sonia, Beccera, Mauricio, Teodoro, Liberty, Spann, Bryan M, Brewer, James, Van der Swag, Helen, Fleisher, Adam, Heidebrink, Judith L, Lord, Joanne L, Mason, Sara S, Albers, Colleen S, Knopman, David, Johnson, Kris, Doody, Rachelle S, Meyer, Javier Villanueva, Chowdhury, Munir, Rountree, Susan, Dang, Mimi, Stern, Yaakov, Honig, Lawrence S, Bell, Karen L, Ances, Beau, Morris, John C, Carroll, Maria, Leon, Sue, Mintun, Mark A, Schneider, Stacy, and Oliver, Angela

Subjects
Clinical and Health Psychology, Biomedical and Clinical Sciences, Psychology, Brain Disorders, Mental Health, Depression, Mental Illness, Mental health, Alzheimer's Disease Neuroimaging Initiative, apathy, dementia, depression, latent class analysis, Genetics, Neurosciences, Biological psychology
Abstract

Apathy is one of the most common neuropsychiatric symptoms (NPS) and is associated with poor clinical outcomes. Research that helps define the apathy phenotype is urgently needed, particularly for clinical and biomarker studies. We used latent class analysis (LCA) with two independent cohorts to understand how apathy and depression symptoms co-occur statistically. We further explored the relationship between latent class membership, demographics, and the presence of other NPS. The LCA identified a four-class solution (no symptoms, apathy, depression, and combined apathy/depression), reproducible over both cohorts, providing robust support for an apathy syndrome distinct from depression and confirming that an apathy/depression syndrome exists, supported by the model fit test with the four-class solution scores evidencing better fitting (Bayesian information criterion adjusted and entropy R 2). Using a data-driven method, we show distinct and statistically meaningful co-occurrence of apathy and depressive symptoms. There was evidence that these classes have different clinical associations, which may help inform diagnostic categories for research studies and clinical practice.HighlightsWe found four classes: no symptoms, apathy, depression and apathy/depression.Apathy conferred a higher probability for agitation.Apathy diagnostic criteria should include accompanying neuropsychiatric symptoms.

Published
2023

3. Promoting diversity in clinical trials: insights from planning the ALUMNI AD study in historically underrepresented US populations with early symptomatic Alzheimer's disease

Author

Wise-Brown, Alexandria, Brangman, Sharon A., Henderson, J. Neil, Willis-Parker, Monica, Monroe, Stephanie, Mintzer, Jacobo E., Grundman, Michael, Smith, Janice, Doody, Rachelle S., Lin, Helen, Assman, Beverly, Rippon, Gregory A., Gonzales, Rozanno, and Assunção, Sheila Seleri

Published
2024
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5. Circular-SWAT for deep learning based diagnostic classification of Alzheimer's disease: application to metabolome data

Author

Kaddurah-Daouk, Rima, Kueider-Paisley, Alexandra, Doraiswamy, P. Murali, Blach, Colette, Moseley, Arthur, Thompson, Will, St John-Williams, Lisa, Mahmoudiandehkhordi, Siamak, Tenenbaum, Jessica, Welsh-Balmer, Kathleen, Plassman, Brenda, Saykin, Andrew J., Nho, Kwangsik, Risacher, Shannon L., Kastenmüller, Gabi, Arnold, Matthias, Han, Xianlin, Baillie, Rebecca, Knight, Rob, Dorrestein, Pieter, Brewer, James, Mayer, Emeran, Labus, Jennifer, Baldi, Pierre, Gupta, Arpana, Fiehn, Oliver, Barupal, Dinesh, Meikle, Peter, Mazmanian, Sarkis, Rader, Dan, Kling, Mitchel, Shaw, Leslie, Trojanowski, John, van Duijin, Cornelia, Nevado-Holgado, Alejo, Bennett, David, Krishnan, Ranga, Keshavarzian, Ali, Vogt, Robin, Ikram, Arfan, Hankemeier, Thomas, Thiele, Ines, Price, Nathan, Funk, Cory, Baloni, Priyanka, Jia, Wei, Wishart, David, Brinton, Roberta, Chang, Rui, Farrer, Lindsay, Au, Rhoda, Qiu, Wendy, Würtz, Peter, Koal, Therese, Mangravite, Lara, Krumsiek, Jan, Suhre, Karsten, Newman, John, Moreno, Herman, Foroud, Tatania, Sacks, Frank, Jansson, Janet, Weiner, Michael W., Aisen, Paul, Petersen, Ronald, Jack, Clifford R., Jr., Jagust, William, Trojanowki, John Q., Toga, Arthur W., Beckett, Laurel, Green, Robert C., Morris, John C., Perrin, Richard J., Shaw, Leslie M., Khachaturian, Zaven, Carrillo, Maria, Potter, William, Barnes, Lisa, Bernard, Marie, Gonzalez, Hector, Ho, Carole, Hsiao, John K., Jackson, Jonathan, Masliah, Eliezer, Masterman, Donna, Okonkwo, Ozioma, Perrin, Richard, Ryan, Laurie, Silverberg, Nina, Fleisher, Adam, Sacrey, Diana Truran, Fockler, Juliet, Conti, Cat, Veitch, Dallas, Neuhaus, John, Jin, Chengshi, Nosheny, Rachel, Ashford, Miriam, Flenniken, Derek, Kormos, Adrienne, Montine, Tom, Rafii, Michael, Raman, Rema, Jimenez, Gustavo, Donohue, Michael, Gessert, Devon, Salazar, Jennifer, Zimmerman, Caileigh, Cabrera, Yuliana, Walter, Sarah, Miller, Garrett, Coker, Godfrey, Clanton, Taylor, Hergesheimer, Lindsey, Smith, Stephanie, Adegoke, Olusegun, Mahboubi, Payam, Moore, Shelley, Pizzola, Jeremy, Shaffer, Elizabeth, Sloan, Brittany, Harvey, Danielle, Forghanian-Arani, Arvin, Borowski, Bret, Ward, Chad, Schwarz, Christopher, Jones, David, Gunter, Jeff, Kantarci, Kejal, Senjem, Matthew, Vemuri, Prashanthi, Reid, Robert, Fox, Nick C., Malone, Ian, Thompson, Paul, Thomopoulos, Sophia I., Nir, Talia M., Jahanshad, Neda, DeCarli, Charles, Knaack, Alexander, Fletcher, Evan, Tosun-Turgut, Duygu, Chen, Stephanie Rossi, Choe, Mark, Crawford, Karen, Yushkevich, Paul A., Das, Sandhitsu, Koeppe, Robert A., Reiman, Eric M., Chen, Kewei, Mathis, Chet, Landau, Susan, Cairns, Nigel J., Householder, Erin, Franklin, Erin, Bernhardt, Haley, Taylor-Reinwald, Lisa, Korecka, Magdalena, Figurski, Michal, Neu, Scott, Apostolova, Liana G., Shen, Li, Foroud, Tatiana M., Nudelman, Kelly, Faber, Kelley, Wilmes, Kristi, Thal, Leon, Silbert, Lisa C., Lind, Betty, Crissey, Rachel, Kaye, Jeffrey A., Carter, Raina, Dolen, Sara, Quinn, Joseph, Schneider, Lon S., Pawluczyk, Sonia, Becerra, Mauricio, Teodoro, Liberty, Dagerman, Karen, Spann, Bryan M., Vanderswag, Helen, Ziolkowski, Jaimie, Heidebrink, Judith L., Zbizek-Nulph, Lisa, Lord, Joanne L., Mason, Sara S., Albers, Colleen S., Knopman, David, Johnson, Kris, Villanueva-Meyer, Javier, Pavlik, Valory, Pacini, Nathaniel, Lamb, Ashley, Kass, Joseph S., Doody, Rachelle S., Shibley, Victoria, Chowdhury, Munir, Rountree, Susan, Dang, Mimi, Stern, Yaakov, Honig, Lawrence S., Mintz, Akiva, Ances, Beau, Winkfield, David, Carroll, Maria, Stobbs-Cucchi, Georgia, Oliver, Angela, Creech, Mary L., Mintun, Mark A., Schneider, Stacy, Geldmacher, David, Love, Marissa Natelson, Griffith, Randall, Clark, David, Brockington, John, Marson, Daniel, Grossman, Hillel, Goldstein, Martin A., Greenberg, Jonathan, Mitsis, Effie, Shah, Raj C., Lamar, Melissa, Samuels, Patricia, Duara, Ranjan, Greig-Custo, Maria T., Rodriguez, Rosemarie, Albert, Marilyn, Onyike, Chiadi, Farrington, Leonie, Rudow, Scott, Brichko, Rottislav, Kielb, Stephanie, Smith, Amanda, Raj, Balebail Ashok, Fargher, Kristin, Sadowski, Martin, Wisniewski, Thomas, Shulman, Melanie, Faustin, Arline, Rao, Julia, Castro, Karen M., Ulysse, Anaztasia, Chen, Shannon, Sheikh, Mohammed O., Singleton-Garvin, Jamika, Petrella, JeffreyR., James, Olga, Wong, Terence Z., Borges-Neto, Salvador, Karlawish, Jason H., Wolk, David A., Vaishnavi, Sanjeev, Clark, Christopher M., Arnold, Steven E., Smith, Charles D., Jicha, Gregory A., Raslau, Flavius D., Lopez, Oscar L., Oakley, MaryAnn, Simpson, Donna M., Porsteinsson, Anton P., Martin, Kim, Kowalski, Nancy, Keltz, Melanie, Goldstein, Bonnie S., Makino, Kelly M., Ismail, M. Saleem, Brand, Connie, Thai, Gaby, Pierce, Aimee, Yanez, Beatriz, Sosa, Elizabeth, Witbracht, Megan, Kelley, Brendan, Nguyen, Trung, Womack, Kyle, Mathews, Dana, Quiceno, Mary, Levey, Allan I., Lah, James J., Hajjar, Ihab, Cellar, Janet S., Burns, Jeffrey M., Swerdlow, Russell H., Brooks, William M., Silverman, Daniel H.S., Kremen, Sarah, Apostolova, Liana, Tingus, Kathleen, Lu, Po H., Bartzokis, George, Woo, Ellen, Teng, Edmond, Graff-Radford, Neill R., Parfitt, Francine, Poki-Walker, Kim, Farlow, Martin R., Hake, Ann Marie, Matthews, Brandy R., Brosch, Jared R., Herring, Scott, van, Christopher H., Mecca, Adam P., Good, Susan P., MacAvoy, Martha G., Carson, Richard E., Varma, Pradeep, Chertkow, Howard, Vaitekunis, Susan, Hosein, Chris, Black, Sandra, Stefanovic, Bojana, Heyn, Chris (Chinthaka), Robin Hsiung, Ging-Yuek, Kim, Ellen, Mudge, Benita, Sossi, Vesna, Feldman, Howard, Assaly, Michele, Finger, Elizabeth, Pasternak, Stephen, Rachinsky, Irina, Kertesz, Andrew, Drost, Dick, Rogers, John, Grant, Ian, Muse, Brittanie, Rogalski, Emily, Robson, Jordan, Mesulam, M.-Marsel, Kerwin, Diana, Wu, Chuang-Kuo, Johnson, Nancy, Lipowski, Kristine, Weintraub, Sandra, Bonakdarpour, Borna, Pomara, Nunzio, Hernando, Raymundo, Sarrael, Antero, Rosen, Howard J., Miller, Bruce L., Perry, David, Turner, Raymond Scott, Johnson, Kathleen, Reynolds, Brigid, MCCann, Kelly, Poe, Jessica, Sperling, Reisa A., Johnson, Keith A., Marshall, Gad A., Yesavage, Jerome, Taylor, Joy L., Chao, Steven, Coleman, Jaila, White, Jessica D., Lane, Barton, Rosen, Allyson, Tinklenberg, Jared, Belden, Christine M., Atri, Alireza, Clark, Kelly A., Zamrini, Edward, Sabbagh, Marwan, Killiany, Ronald, Stern, Robert, Mez, Jesse, Kowall, Neil, Budson, Andrew E., Obisesan, Thomas O., Ntekim, Oyonumo E., Wolday, Saba, Khan, Javed I., Nwulia, Evaristus, Nadarajah, Sheeba, Lerner, Alan, Ogrocki, Paula, Tatsuoka, Curtis, Fatica, Parianne, Maillard, Pauline, Olichney, John, Carmichael, Owen, Bates, Vernice, Capote, Horacio, Rainka, Michelle, Borrie, Michael, Lee, T.-Y., Bartha, Dr Rob, Johnson, Sterling, Asthana, Sanjay, Carlsson, Cynthia M., Perrin, Allison, Burke, Anna, Scharre, Douglas W., Kataki, Maria, Tarawneh, Rawan, Hart, David, Zimmerman, Earl A., Celmins, Dzintra, Miller, Delwyn D., BolesPonto, Laura L., Smith, Karen Ekstam, Koleva, Hristina, Shim, Hyungsub, Nam, Ki Won, Schultz, Susan K., Williamson, Jeff D., Craft, Suzanne, Cleveland, Jo, Yang, Mia, Sink, Kaycee M., Ott, Brian R., Drake, Jonathan, Tremont, Geoffrey, Daiello, Lori A., Drake, Jonathan D., Ritter, Aaron, Bernick, Charles, Munic, Donna, O'Connelll, Abigail, Mintzer, Jacobo, Wiliams, Arthur, Masdeu, Joseph, Shi, Jiong, Garcia, Angelica, Newhouse, Paul, Potkin, Steven, Salloway, Stephen, Malloy, Paul, Correia, Stephen, Kittur, Smita, Pearlson, Godfrey D., Blank, Karen, Anderson, Karen, Flashman, Laura A., Seltzer, Marc, Hynes, Mary L., Santulli, Robert B., Relkin, Norman, Chiang, Gloria, Lee, Athena, Lin, Michael, Ravdin, Lisa, Petersen, Ron, Neylan, Thomas, Grafman, Jordan, Danowski, Sarah, Nguyen-Barrera, Catherine, Hayes, Jacqueline, Finley, Shannon, Bernstein, Matthew, Senjem, Matt, Foster, Norm, Kim, Sungeun, Sood, Ajay, Blanchard, Kimberly S., Fleischman, Debra, Arfanakis, Konstantinos, Varon, Daniel, Greig, Maria T., Petrella, Jeffrey R., Goldstein, Bonnie, Martin, Kimberly S., Reist, Christopher, Sadowsky, Carl, Martinez, Walter, Villena, Teresa, Rosen, Howard, Marshall, Gad, Peskind, Elaine R., Petrie, Eric C., Li, Gail, Mackin, Scott, Jimenez-Maggiora, Gustavo, Drake, Erin, Donohue, Mike, Nelson, Craig, Bickford, David, Butters, Meryl, Zmuda, Michelle, Reyes, Denise, Faber, Kelley M., Nudelman, Kelly N., Au, Yiu Ho, Scherer, Kelly, Catalinotto, Daniel, Stark, Samuel, Ong, Elise, Fernandez, Dariella, Jo, Taeho, Kim, Junpyo, Bice, Paula, Huynh, Kevin, Wang, Tingting, Meikle, Peter J., and Giles, Corey

Published
2023
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6. A Phase II Study to Evaluate the Safety and Efficacy of Prasinezumab in Early Parkinson's Disease (PASADENA): Rationale, Design, and Baseline Data

Author

Pagano, Gennaro, Boess, Frank G, Taylor, Kirsten I, Ricci, Benedicte, Mollenhauer, Brit, Poewe, Werner, Boulay, Anne, Anzures-Cabrera, Judith, Vogt, Annamarie, Marchesi, Maddalena, Post, Anke, Nikolcheva, Tania, Kinney, Gene G, Zago, Wagner M, Ness, Daniel K, Svoboda, Hanno, Britschgi, Markus, Ostrowitzki, Susanne, Simuni, Tanya, Marek, Kenneth, Koller, Martin, Sevigny, Jeff, Doody, Rachelle, Fontoura, Paulo, Umbricht, Daniel, Bonni, Azad, Investigators, PASADENA, Group, Prasinezumab Study, Altendorf, Claudia, Anandan, Chareyna, Andrews, Giulia, Ansquer, Solène, Arrouasse, Raphaele, Aslam, Sana, Azulay, Jean-Philippe, Baker, Jeanette, Martinez, Ernest Balaguer, Barbu, Shadi, Bardram, Kara, Bega, Danny, Marco, Helena Bejr-Kasem, Benatru, Isabelle, Benchetrit, Eve, Bernhard, Felix, Besharat, Amir, Bette, Sagari, Bichon, Amelie, Billnitzer, Andrew, Blondeau, Sophie, Boraud, Thomas, Borngräber, Freiderike, Boyd, James, Brockmann, Kathrin, Brodsky, Matthew, Brown, Ethan, Bruecke, Christof, Calvas, Fabienne, Canelo, Monica, Carbone, Federico, Carroll, Claire, Fernandez, Laura Casado, Cassé-Perrot, Catherine, Castrioto, Anna, Catala, Helene, Chan, Justine, Cheriet, Samia, Ciabarra, Anthony, Classen, Joseph, Coleman, Juliana, Coleman, Robert, Compta, Yaroslau, Corbillé, Anne-Gaëlle, Corvol, Jean-Christophe, Cosgaya, Mariana, Dahodwala, Nabila, Damier, Philippe, David, Elodie, Davis, Thomas, Dean, Marissa, Debilly, Berengere, DeGiorgio, Janell, Deik, Andres, Delaby, Laure, Delfini, Marie-Helene, Derkinderen, Pascal, Derost, Philipp, de Toledo, Maria, Deuel, Lisa, Diaz-Hernandez, Ann Marie, Dietiker, Cameron, Dimenshteyn, Karina, Dotor, Julio, Durif, Franck, Ebentheuer, Jens, Eggert, Karla Maria, Madueño, Sara Eichau, Eickhoff, Claudia, Ellenbogen, Aaron, Ellmerer, Philipp, and Vazquez, Ines Esparragosa

Subjects
Biomedical and Clinical Sciences, Clinical Sciences, Neurodegenerative, Parkinson's Disease, Clinical Research, Neurosciences, Aging, Clinical Trials and Supportive Activities, Brain Disorders, 6.1 Pharmaceuticals, Evaluation of treatments and therapeutic interventions, Neurological, PASADENA Investigators, Prasinezumab Study Group, MDS-UPDRS = Movement Disorder Society—Unified Parkinson's Disease Rating Scale, Parkinson's disease, Phase II clinical trial, alpha-synuclein, disease modification treatments, disease progression, monoclonal antibodies, prasinezumab, Psychology, Clinical sciences, Biological psychology
Abstract

Background: Currently available treatments for Parkinson's disease (PD) do not slow clinical progression nor target alpha-synuclein, a key protein associated with the disease. Objective: The study objective was to evaluate the efficacy and safety of prasinezumab, a humanized monoclonal antibody that binds aggregated alpha-synuclein, in individuals with early PD. Methods: The PASADENA study is a multicenter, randomized, double-blind, placebo-controlled treatment study. Individuals with early PD, recruited across the US and Europe, received monthly intravenous doses of prasinezumab (1,500 or 4,500 mg) or placebo for a 52-week period (Part 1), followed by a 52-week extension (Part 2) in which all participants received active treatment. Key inclusion criteria were: aged 40-80 years; Hoehn & Yahr (H&Y) Stage I or II; time from diagnosis ≤2 years; having bradykinesia plus one other cardinal sign of PD (e.g., resting tremor, rigidity); DAT-SPECT imaging consistent with PD; and either treatment naïve or on a stable monoamine oxidase B (MAO-B) inhibitor dose. Study design assumptions for sample size and study duration were built using a patient cohort from the Parkinson's Progression Marker Initiative (PPMI). In this report, baseline characteristics are compared between the treatment-naïve and MAO-B inhibitor-treated PASADENA cohorts and between the PASADENA and PPMI populations. Results: Of the 443 patients screened, 316 were enrolled into the PASADENA study between June 2017 and November 2018, with an average age of 59.9 years and 67.4% being male. Mean time from diagnosis at baseline was 10.11 months, with 75.3% in H&Y Stage II. Baseline motor and non-motor symptoms (assessed using Movement Disorder Society-Unified Parkinson's Disease Rating Scale [MDS-UPDRS]) were similar in severity between the MAO-B inhibitor-treated and treatment-naïve PASADENA cohorts (MDS-UPDRS sum of Parts I + II + III [standard deviation (SD)]; 30.21 [11.96], 32.10 [13.20], respectively). The overall PASADENA population (63.6% treatment naïve and 36.4% on MAO-B inhibitor) showed a similar severity in MDS-UPDRS scores (e.g., MDS-UPDRS sum of Parts I + II + III [SD]; 31.41 [12.78], 32.63 [13.04], respectively) to the PPMI cohort (all treatment naïve). Conclusions: The PASADENA study population is suitable to investigate the potential of prasinezumab to slow disease progression in individuals with early PD. Trial Registration: NCT03100149.

Published
2021

7. Women can bear a bigger burden: ante- and post-mortem evidence for reserve in the face of tau

Author

Digma, Leonardino A, Madsen, John R, Rissman, Robert A, Jacobs, Diane M, Brewer, James B, Banks, Sarah J, Weiner, Michael, Aisen, Paul, Petersen, Ronald, Jack, Clifford R, Jagust, William, Trojanowki, John Q, Toga, Arthur W, Beckett, Laurel, Green, Robert C, Saykin, Andrew J, Morris, John, Shaw, Leslie M, Liu, Enchi, Montine, Tom, Thomas, Ronald G, Donohue, Michael, Walter, Sarah, Gessert, Devon, Sather, Tamie, Jiminez, Gus, Harvey, Danielle, Bernstein, Matthew, Fox, Nick, Thompson, Paul, Schuff, Norbert, DeCArli, Charles, Borowski, Bret, Gunter, Jeff, Senjem, Matt, Vemuri, Prashanthi, Jones, David, Kantarci, Kejal, Ward, Chad, Koeppe, Robert A, Foster, Norm, Reiman, Eric M, Chen, Kewei, Mathis, Chet, Landau, Susan, Cairns, Nigel J, Householder, Erin, Reinwald, Lisa Taylor, Lee, Virginia, Korecka, Magdalena, Figurski, Michal, Crawford, Karen, Neu, Scott, Foroud, Tatiana M, Potkin, Steven, Shen, Li, Kelley, Faber, Kim, Sungeun, Nho, Kwangsik, Kachaturian, Zaven, Frank, Richard, Snyder, Peter J, Molchan, Susan, Kaye, Jeffrey, Quinn, Joseph, Lind, Betty, Carter, Raina, Dolen, Sara, Schneider, Lon S, Pawluczyk, Sonia, Beccera, Mauricio, Teodoro, Liberty, Spann, Bryan M, Brewer, James, Vanderswag, Helen, Fleisher, Adam, Heidebrink, Judith L, Lord, Joanne L, Mason, Sara S, Albers, Colleen S, Knopman, David, Johnson, Kris, Doody, Rachelle S, Meyer, Javier Villanueva, Chowdhury, Munir, Rountree, Susan, Dang, Mimi, Stern, Yaakov, Honig, Lawrence S, Bell, Karen L, Ances, Beau, Morris, John C, Carroll, Maria, Leon, Sue, Mintun, Mark A, Schneider, Stacy, and Oliver, Angela

Subjects
Biological Psychology, Psychology, Brain Disorders, Neurodegenerative, Alzheimer's Disease, Neurosciences, Acquired Cognitive Impairment, Women's Health, Aging, Alzheimer's Disease including Alzheimer's Disease Related Dementias (AD/ADRD), Dementia, Clinical Research, tau, verbal memory, sex differences, Alzheimer's disease, Alzheimer’s Disease Neuroimaging Initiative, Alzheimer’s disease, Clinical sciences, Biological psychology
Abstract

In this study, we aimed to assess whether women are able to withstand more tau before exhibiting verbal memory impairment. Using data from 121 amyloid-β-positive Alzheimer's Disease Neuroimaging Initiative participants, we fit a linear model with Rey Auditory Verbal Learning Test score as the response variable and tau-PET standard uptake value ratio as the predictor and took the residuals as an estimate of verbal memory reserve for each subject. Women demonstrated higher reserve (i.e. residuals), whether the Learning (t = 2.78, P = 0.006) or Delay (t = 2.14, P = 0.03) score from the Rey Auditory Verbal Learning Test was used as a measure of verbal memory ability. To validate these findings, we examined 662 National Alzheimer's Coordinating Center participants with a C2/C3 score (Consortium to Establish a Registry for Alzheimer's Disease) at autopsy. We stratified our National Alzheimer's Coordinating Center sample into Braak 1/2, Braak 3/4 and Braak 5/6 subgroups. Within each subgroup, we compared Logical Memory scores between men and women. Men had worse verbal memory scores within the Braak 1/2 (Logical Memory Immediate: β = -5.960 ± 1.517, P

Published
2020

8. Author Correction: Genetic meta-analysis of diagnosed Alzheimer’s disease identifies new risk loci and implicates Aβ, tau, immunity and lipid processing

Author

Kunkle, Brian W, Grenier-Boley, Benjamin, Sims, Rebecca, Bis, Joshua C, Damotte, Vincent, Naj, Adam C, Boland, Anne, Vronskaya, Maria, van der Lee, Sven J, Amlie-Wolf, Alexandre, Bellenguez, Céline, Frizatti, Aura, Chouraki, Vincent, Martin, Eden R, Sleegers, Kristel, Badarinarayan, Nandini, Jakobsdottir, Johanna, Hamilton-Nelson, Kara L, Moreno-Grau, Sonia, Olaso, Robert, Raybould, Rachel, Chen, Yuning, Kuzma, Amanda B, Hiltunen, Mikko, Morgan, Taniesha, Ahmad, Shahzad, Vardarajan, Badri N, Epelbaum, Jacques, Hoffmann, Per, Boada, Merce, Beecham, Gary W, Garnier, Jean-Guillaume, Harold, Denise, Fitzpatrick, Annette L, Valladares, Otto, Moutet, Marie-Laure, Gerrish, Amy, Smith, Albert V, Qu, Liming, Bacq, Delphine, Denning, Nicola, Jian, Xueqiu, Zhao, Yi, Del Zompo, Maria, Fox, Nick C, Choi, Seung-Hoan, Mateo, Ignacio, Hughes, Joseph T, Adams, Hieab H, Malamon, John, Sanchez-Garcia, Florentino, Patel, Yogen, Brody, Jennifer A, Dombroski, Beth A, Naranjo, Maria Candida Deniz, Daniilidou, Makrina, Eiriksdottir, Gudny, Mukherjee, Shubhabrata, Wallon, David, Uphill, James, Aspelund, Thor, Cantwell, Laura B, Garzia, Fabienne, Galimberti, Daniela, Hofer, Edith, Butkiewicz, Mariusz, Fin, Bertrand, Scarpini, Elio, Sarnowski, Chloe, Bush, Will S, Meslage, Stéphane, Kornhuber, Johannes, White, Charles C, Song, Yuenjoo, Barber, Robert C, Engelborghs, Sebastiaan, Sordon, Sabrina, Voijnovic, Dina, Adams, Perrie M, Vandenberghe, Rik, Mayhaus, Manuel, Cupples, L Adrienne, Albert, Marilyn S, De Deyn, Peter P, Gu, Wei, Himali, Jayanadra J, Beekly, Duane, Squassina, Alessio, Hartmann, Annette M, Orellana, Adelina, Blacker, Deborah, Rodriguez-Rodriguez, Eloy, Lovestone, Simon, Garcia, Melissa E, Doody, Rachelle S, Munoz-Fernadez, Carmen, Sussams, Rebecca, Lin, Honghuang, Fairchild, Thomas J, and Benito, Yolanda A

Subjects
Biochemistry and Cell Biology, Biological Sciences, Alzheimer Disease Genetics Consortium, European Alzheimer’s Disease Initiative, Cohorts for Heart and Aging Research in Genomic Epidemiology Consortium, Genetic and Environmental Risk in AD/Defining Genetic, Polygenic and Environmental Risk for Alzheimer’s Disease Consortium, Medical and Health Sciences, Developmental Biology, Agricultural biotechnology, Bioinformatics and computational biology, Genetics
Abstract

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

Published
2019

9. Genetic meta-analysis of diagnosed Alzheimer’s disease identifies new risk loci and implicates Aβ, tau, immunity and lipid processing

Author

Kunkle, Brian W, Grenier-Boley, Benjamin, Sims, Rebecca, Bis, Joshua C, Damotte, Vincent, Naj, Adam C, Boland, Anne, Vronskaya, Maria, van der Lee, Sven J, Amlie-Wolf, Alexandre, Bellenguez, Céline, Frizatti, Aura, Chouraki, Vincent, Martin, Eden R, Sleegers, Kristel, Badarinarayan, Nandini, Jakobsdottir, Johanna, Hamilton-Nelson, Kara L, Moreno-Grau, Sonia, Olaso, Robert, Raybould, Rachel, Chen, Yuning, Kuzma, Amanda B, Hiltunen, Mikko, Morgan, Taniesha, Ahmad, Shahzad, Vardarajan, Badri N, Epelbaum, Jacques, Hoffmann, Per, Boada, Merce, Beecham, Gary W, Garnier, Jean-Guillaume, Harold, Denise, Fitzpatrick, Annette L, Valladares, Otto, Moutet, Marie-Laure, Gerrish, Amy, Smith, Albert V, Qu, Liming, Bacq, Delphine, Denning, Nicola, Jian, Xueqiu, Zhao, Yi, Del Zompo, Maria, Fox, Nick C, Choi, Seung-Hoan, Mateo, Ignacio, Hughes, Joseph T, Adams, Hieab H, Malamon, John, Sanchez-Garcia, Florentino, Patel, Yogen, Brody, Jennifer A, Dombroski, Beth A, Naranjo, Maria Candida Deniz, Daniilidou, Makrina, Eiriksdottir, Gudny, Mukherjee, Shubhabrata, Wallon, David, Uphill, James, Aspelund, Thor, Cantwell, Laura B, Garzia, Fabienne, Galimberti, Daniela, Hofer, Edith, Butkiewicz, Mariusz, Fin, Bertrand, Scarpini, Elio, Sarnowski, Chloe, Bush, Will S, Meslage, Stéphane, Kornhuber, Johannes, White, Charles C, Song, Yuenjoo, Barber, Robert C, Engelborghs, Sebastiaan, Sordon, Sabrina, Voijnovic, Dina, Adams, Perrie M, Vandenberghe, Rik, Mayhaus, Manuel, Cupples, L Adrienne, Albert, Marilyn S, De Deyn, Peter P, Gu, Wei, Himali, Jayanadra J, Beekly, Duane, Squassina, Alessio, Hartmann, Annette M, Orellana, Adelina, Blacker, Deborah, Rodriguez-Rodriguez, Eloy, Lovestone, Simon, Garcia, Melissa E, Doody, Rachelle S, Munoz-Fernadez, Carmen, Sussams, Rebecca, Lin, Honghuang, Fairchild, Thomas J, and Benito, Yolanda A

Subjects
Biochemistry and Cell Biology, Genetics, Biological Sciences, Neurodegenerative, Dementia, Alzheimer's Disease, Aging, Prevention, Brain Disorders, Neurosciences, Clinical Research, Alzheimer's Disease including Alzheimer's Disease Related Dementias (AD/ADRD), Human Genome, Acquired Cognitive Impairment, 2.1 Biological and endogenous factors, Aetiology, Inflammatory and immune system, Neurological, Aged, Alzheimer Disease, Amyloid beta-Peptides, Case-Control Studies, Female, Genetic Loci, Genetic Predisposition to Disease, Genetic Testing, Genome-Wide Association Study, Haplotypes, Humans, Immunity, Lipid Metabolism, Lipids, Male, tau Proteins, Alzheimer Disease Genetics Consortium (ADGC), European Alzheimer’s Disease Initiative (EADI), Cohorts for Heart and Aging Research in Genomic Epidemiology Consortium (CHARGE), Genetic and Environmental Risk in AD/Defining Genetic, Polygenic and Environmental Risk for Alzheimer’s Disease Consortium (GERAD/PERADES), Medical and Health Sciences, Developmental Biology, Agricultural biotechnology, Bioinformatics and computational biology
Abstract

Risk for late-onset Alzheimer's disease (LOAD), the most prevalent dementia, is partially driven by genetics. To identify LOAD risk loci, we performed a large genome-wide association meta-analysis of clinically diagnosed LOAD (94,437 individuals). We confirm 20 previous LOAD risk loci and identify five new genome-wide loci (IQCK, ACE, ADAM10, ADAMTS1, and WWOX), two of which (ADAM10, ACE) were identified in a recent genome-wide association (GWAS)-by-familial-proxy of Alzheimer's or dementia. Fine-mapping of the human leukocyte antigen (HLA) region confirms the neurological and immune-mediated disease haplotype HLA-DR15 as a risk factor for LOAD. Pathway analysis implicates immunity, lipid metabolism, tau binding proteins, and amyloid precursor protein (APP) metabolism, showing that genetic variants affecting APP and Aβ processing are associated not only with early-onset autosomal dominant Alzheimer's disease but also with LOAD. Analyses of risk genes and pathways show enrichment for rare variants (P = 1.32 × 10-7), indicating that additional rare variants remain to be identified. We also identify important genetic correlations between LOAD and traits such as family history of dementia and education.

Published
2019

10. Severity dependent distribution of impairments in PSP and CBS: Interactive visualizations

Author

Brittain, Claire, McCarthy, Andrew, Irizarry, Michael C, McDermott, Dana, Biglan, Kevin, Höglinger, Günter U, Lorenzl, Stefan, del Ser, Teodoro, Boxer, Adam L, Group, The AL-108-231 Study, Williams, David, Lafontaine, Anne Louise, Marras, Connie, Jog, Mandar, Panisset, Michael, Lang, Anthony, Parker, Lesley, Stewart, Alistair J, Corvol, Jean-Christophe, Azulay, Jean-Philippe, Couratier, Philippe, Mollenhauer, Brit, Ludolph, Albert, Benecke, Reiner, Hoglinger, Gunter, Lipp, Axel, Reichmann, Heinz, Woitalla, Dirk, Chan, Dennis, Zermansky, Adam, Burn, David, Lees, Andrew, Gozes, Illana, Boxer, Adam, Miller, Bruce L, Lobach, Iryna V, Roberson, Erik, Honig, Lawrence, Zamrini, Edward, Pahwa, Rajesh, Bordelon, Yvette, Driver-Dunkley, Erika, Lessig, Stephanie, Lew, Mark, Womack, Kyle, Boeve, Brad, Ferrara, Joseph, Hillis, Argyle, Kaufer, Daniel, Kumar, Rajeev, Xie, Tao, Gunzler, Steven, Zesiewicz, Theresa, Dayalu, Praveen, Golbe, Lawrence, Grossman, Murray, Jankovic, Joseph, McGinnis, Scott, Santiago, Anthony, Tuite, Paul, Isaacson, Stuart, Leegwater-Kim, Julie, Litvan, Irene, Knopman, David S, Schneider, Lon S, Doody, Rachelle S, Golbe, Lawrence I, Roberson, Erik D, Koestler, Mary, Jack, Clifford R, Van Deerlin, Viviana, Randolph, Christopher, Whitaker, Steve, Hirman, Joe, Gold, Michael, Morimoto, Bruce H, investigators, The PROPSPERA, G, Georg Nuebling, Hensler, Mira, Paul, Sabine, Zwergal, Andreas, 4RNTI-1authors, Heuer, Hilary W, Tartaglia, Maria C, McGinnis, Scott M, Dickerson, Bradford C, Kornak, John, Schuff, Norbert, Rabinovici, Gil D, Rosen, Howard J, Investigators, Tau Restoration on PSP, Gómez, JC, Tijero, B, Berganzo, K, de Yebenes, J Garc'ıa, Sendón, JL Lopez, and Garcia, G

Subjects
Biomedical and Clinical Sciences, Neurosciences, Clinical Sciences, Brain Disorders, Alzheimer's Disease including Alzheimer's Disease Related Dementias (AD/ADRD), Clinical Trials and Supportive Activities, Rare Diseases, Neurodegenerative, Aging, Acquired Cognitive Impairment, Clinical Research, Dementia, Frontotemporal Dementia (FTD), Health Disparities, Alzheimer's Disease Related Dementias (ADRD), 4.2 Evaluation of markers and technologies, Neurological, Aged, Aged, 80 and over, Basal Ganglia Diseases, Data Visualization, Disease Progression, Female, Humans, Male, Middle Aged, Models, Neurological, Neurodegenerative Diseases, Prognosis, Severity of Illness Index, Supranuclear Palsy, Progressive, Syndrome, Corticobasal syndrome, Progressive supranuclear palsy, PSP rating scale, Interactive visualizations, Predictive models, AL-108-231 Study Group, PROPSPERA investigators, 4RNTI-1authors, Tau Restoration on PSP (TAUROS) Investigators, Cognitive Sciences, Neurology & Neurosurgery, Clinical sciences, Biological psychology
Abstract

BackgroundProgressive supranuclear palsy (PSP) -Richardson's Syndrome and Corticobasal Syndrome (CBS) are the two classic clinical syndromes associated with underlying four repeat (4R) tau pathology. The PSP Rating Scale is a commonly used assessment in PSP clinical trials; there is an increasing interest in designing combined 4R tauopathy clinical trials involving both CBS and PSP.ObjectivesTo determine contributions of each domain of the PSP Rating Scale to overall severity and characterize the probable sequence of clinical progression of PSP as compared to CBS.MethodsMulticenter clinical trial and natural history study data were analyzed from 545 patients with PSP and 49 with CBS. Proportional odds models were applied to model normalized cross-sectional PSP Rating Scale, estimating the probability that a patient would experience impairment in each domain using the PSP Rating Scale total score as the index of overall disease severity.ResultsThe earliest symptom domain to demonstrate impairment in PSP patients was most likely to be Ocular Motor, followed jointly by Gait/Midline and Daily Activities, then Limb Motor and Mentation, and finally Bulbar. For CBS, Limb Motor manifested first and ocular showed less probability of impairment throughout the disease spectrum. An online tool to visualize predicted disease progression was developed to predict relative disability on each subscale per overall disease severity.ConclusionThe PSP Rating Scale captures disease severity in both PSP and CBS. Modelling how domains change in relation to one other at varying disease severities may facilitate detection of therapeutic effects in future clinical trials.

Published
2019

12. CSF neurofilament light chain and phosphorylated tau 181 predict disease progression in PSP

Author

Rojas, Julio C, Bang, Jee, Lobach, Iryna V, Tsai, Richard M, Rabinovici, Gil D, Miller, Bruce L, Boxer, Adam L, Williams, David, Lafontaine, Anne Louise, Marras, Connie, Jog, Mandar, Panisset, Michael, Lang, Anthony, Parker, Lesley, Stewart, Alistair J, Corvol, Jean-Christophe, Azulay, Jean-Philippe, Couratier, Philippe, Mollenhauer, Brit, Lorenzl, Stefan, Ludolph, Albert, Benecke, Reiner, Hoglinger, Gunter, Lipp, Axel, Reichmann, Heinz, Woitalla, Dirk, Chan, Dennis, Zermansky, Adam, Burn, David, Lees, Andrew, Gozes, Illana, Boxer, Adam, Roberson, Erik, Honig, Lawrence, Zamrini, Edward, Pahwa, Rajesh, Bordelon, Yvette, Driver-Dunkley, Erika, Lessig, Stephanie, Lew, Mark, Womack, Kyle, Boeve, Brad, Ferrara, Joseph, Hillis, Argyle, Kaufer, Daniel, Kumar, Rajeev, Xie, Tao, Gunzler, Steven, Zesiewicz, Theresa, Dayalu, Praveen, Golbe, Lawrence, Grossman, Murray, Jankovic, Joseph, McGinnis, Scott, Santiago, Anthony, Tuite, Paul, Isaacson, Stuart, Leegwater-Kim, Julie, Litvan, Irene, Knopman, David S, Schneider, Lon S, Doody, Rachelle S, Koestler, Mary, Jack, Clifford R, Van Deerlin, Viviana, Randolph, Christopher, Whitaker, Steve, Hirman, Joe, Gold, Michael, and Morimoto, Bruce H

Subjects
Biomedical and Clinical Sciences, Neurosciences, Clinical Sciences, Brain Disorders, Aging, Alzheimer's Disease, Neurodegenerative, Clinical Research, Alzheimer's Disease including Alzheimer's Disease Related Dementias (AD/ADRD), Acquired Cognitive Impairment, Dementia, Neurological, Aged, Amyloid beta-Peptides, Biomarkers, Brain, Central Nervous System Agents, Disease Progression, Double-Blind Method, Female, Humans, Longitudinal Studies, Male, Neurofilament Proteins, Oligopeptides, Peptide Fragments, Phosphorylation, Prognosis, Severity of Illness Index, Supranuclear Palsy, Progressive, tau Proteins, AL-108-231 Investigators, Cognitive Sciences, Neurology & Neurosurgery, Clinical sciences
Abstract

ObjectiveTo determine the ability of CSF biomarkers to predict disease progression in progressive supranuclear palsy (PSP).MethodsWe compared the ability of baseline CSF β-amyloid1-42, tau, phosphorylated tau 181 (p-tau), and neurofilament light chain (NfL) concentrations, measured by INNO-BIA AlzBio3 or ELISA, to predict 52-week changes in clinical (PSP Rating Scale [PSPRS] and Schwab and England Activities of Daily Living [SEADL]), neuropsychological, and regional brain volumes on MRI using linear mixed effects models controlled for age, sex, and baseline disease severity, and Fisher F density curves to compare effect sizes in 50 patients with PSP. Similar analyses were done using plasma NfL measured by single molecule arrays in 141 patients.ResultsHigher CSF NfL concentration predicted more rapid decline (biomarker × time interaction) over 52 weeks in PSPRS (p = 0.004, false discovery rate-corrected) and SEADL (p = 0.008), whereas lower baseline CSF p-tau predicted faster decline on PSPRS (p = 0.004). Higher CSF tau concentrations predicted faster decline by SEADL (p = 0.004). The CSF NfL/p-tau ratio was superior for predicting change in PSPRS, compared to p-tau (p = 0.003) or NfL (p = 0.001) alone. Higher NfL concentrations in CSF or blood were associated with greater superior cerebellar peduncle atrophy (fixed effect, p ≤ 0.029 and 0.008, respectively).ConclusionsBoth CSF p-tau and NfL correlate with disease severity and rate of disease progression in PSP. The inverse correlation of p-tau with disease severity suggests a potentially different mechanism of tau pathology in PSP as compared to Alzheimer disease.

Published
2018

13. Transethnic genome‐wide scan identifies novel Alzheimer's disease loci

Author

Jun, Gyungah R, Chung, Jaeyoon, Mez, Jesse, Barber, Robert, Beecham, Gary W, Bennett, David A, Buxbaum, Joseph D, Byrd, Goldie S, Carrasquillo, Minerva M, Crane, Paul K, Cruchaga, Carlos, De Jager, Philip, Ertekin‐Taner, Nilufer, Evans, Denis, Fallin, M Danielle, Foroud, Tatiana M, Friedland, Robert P, Goate, Alison M, Graff‐Radford, Neill R, Hendrie, Hugh, Hall, Kathleen S, Hamilton‐Nelson, Kara L, Inzelberg, Rivka, Kamboh, M Ilyas, Kauwe, John SK, Kukull, Walter A, Kunkle, Brian W, Kuwano, Ryozo, Larson, Eric B, Logue, Mark W, Manly, Jennifer J, Martin, Eden R, Montine, Thomas J, Mukherjee, Shubhabrata, Naj, Adam, Reiman, Eric M, Reitz, Christiane, Sherva, Richard, St. George‐Hyslop, Peter H, Thornton, Timothy, Younkin, Steven G, Vardarajan, Badri N, Wang, Li‐San, Wendlund, Jens R, Winslow, Ashley R, Adams, Perrie M, Albert, Marilyn S, Albin, Roger L, Apostolova, Liana G, Arnold, Steven E, Asthana, Sanjay, Atwood, Craig S, Barmada, Michjael M, Barnes, Lisa L, Beach, Thomas G, Becker, James T, Bigio, Eileen H, Bird, Thomas D, Blacker, Deborah, Boeve, Bradley F, Bowen, James D, Boxer, Adam, Burke, James R, Cairns, Nigel J, Cao, Chuanhai, Carlson, Chris S, Carlsson, Cynthia M, Carney, Regina M, Carroll, Steven L, Chui, Helena C, Clark, David G, Corneveaux, Jason, Cribbs, David H, Crocco, Elizabeth A, De Jager, Philip L, DeCarli, Charles, DeKosky, Steven T, Demirci, F Yesim, Dick, Malcolm, Dickson, Dennis W, Doody, Rachelle S, Duara, Ranjan, Faber, Kelley M, Fairchild, Thomas J, Fallon, Kenneth B, Farlow, Martin R, Ferris, Steven, Frosch, Matthew P, Galasko, Douglas R, Gearing, Marla, Geschwind, Daniel H, Ghetti, Bernardino, Gilbert, John R, Glass, Jonathan D, Green, Robert C, and Growdon, John H

Subjects
Biomedical and Clinical Sciences, Biological Psychology, Clinical Sciences, Neurosciences, Psychology, Neurodegenerative, Genetics, Dementia, Alzheimer's Disease, Aging, Prevention, Brain Disorders, Alzheimer's Disease including Alzheimer's Disease Related Dementias (AD/ADRD), Human Genome, Acquired Cognitive Impairment, 2.1 Biological and endogenous factors, Aetiology, Adaptor Proteins, Signal Transducing, Alzheimer Disease, Apolipoprotein E4, GTPase-Activating Proteins, Genetic Predisposition to Disease, Genome-Wide Association Study, Heparin-binding EGF-like Growth Factor, Humans, Membrane Glycoproteins, Molecular Chaperones, NFI Transcription Factors, Peroxisomal Bifunctional Enzyme, Polymorphism, Single Nucleotide, Receptors, GABA, Alzheimer's Disease Genetics Consortium, APOE interaction, Alzheimer's disease, Genome-wide association, Transethnic, Geriatrics, Clinical sciences, Biological psychology
Abstract

IntroductionGenetic loci for Alzheimer's disease (AD) have been identified in whites of European ancestry, but the genetic architecture of AD among other populations is less understood.MethodsWe conducted a transethnic genome-wide association study (GWAS) for late-onset AD in Stage 1 sample including whites of European Ancestry, African-Americans, Japanese, and Israeli-Arabs assembled by the Alzheimer's Disease Genetics Consortium. Suggestive results from Stage 1 from novel loci were followed up using summarized results in the International Genomics Alzheimer's Project GWAS dataset.ResultsGenome-wide significant (GWS) associations in single-nucleotide polymorphism (SNP)-based tests (P

Published
2017

14. A trial of gantenerumab or solanezumab in dominantly inherited Alzheimer’s disease

Author

Salloway, Stephen, Farlow, Martin, McDade, Eric, Clifford, David B., Wang, Guoqiao, Llibre-Guerra, Jorge J., Hitchcock, Janice M., Mills, Susan L., Santacruz, Anna M., Aschenbrenner, Andrew J., Hassenstab, Jason, Benzinger, Tammie L. S., Gordon, Brian A., Fagan, Anne M., Coalier, Kelley A., Cruchaga, Carlos, Goate, Alison A., Perrin, Richard J., Xiong, Chengjie, Li, Yan, Morris, John C., Snider, B. Joy, Mummery, Catherine, Surti, G. Mustafa, Hannequin, Didier, Wallon, David, Berman, Sarah B., Lah, James J., Jimenez-Velazquez, Ivonne Z., Roberson, Erik D., van Dyck, Christopher H., Honig, Lawrence S., Sánchez-Valle, Raquel, Brooks, William S., Gauthier, Serge, Galasko, Douglas R., Masters, Colin L., Brosch, Jared R., Hsiung, Ging-Yuek Robin, Jayadev, Suman, Formaglio, Maité, Masellis, Mario, Clarnette, Roger, Pariente, Jérémie, Dubois, Bruno, Pasquier, Florence, Jack, Jr, Clifford R., Koeppe, Robert, Snyder, Peter J., Aisen, Paul S., Thomas, Ronald G., Berry, Scott M., Wendelberger, Barbara A., Andersen, Scott W., Holdridge, Karen C., Mintun, Mark A., Yaari, Roy, Sims, John R., Baudler, Monika, Delmar, Paul, Doody, Rachelle S., Fontoura, Paulo, Giacobino, Caroline, Kerchner, Geoffrey A., and Bateman, Randall J.

Published
2021
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15. Progression of brain atrophy in PSP and CBS over 6 months and 1 year

Author

Dutt, Shubir, Binney, Richard J, Heuer, Hilary W, Luong, Phi, Attygalle, Suneth, Bhatt, Priyanka, Marx, Gabe A, Elofson, Jonathan, Tartaglia, Maria C, Litvan, Irene, McGinnis, Scott M, Dickerson, Bradford C, Kornak, John, Waltzman, Dana, Voltarelli, Lisa, Schuff, Norbert, Rabinovici, Gil D, Kramer, Joel H, Jack, Clifford R, Miller, Bruce L, Rosen, Howard J, Boxer, Adam L, Williams, David, Lafontaine, Anne Louise, Marras, Connie, Jog, Mandar, Panisset, Michael, Lang, Anthony, Parker, Lesley, Stewart, Alistair J, Corvol, Jean-Christophe, Azulay, Jean-Philippe, Couratier, Philippe, Mollenhauer, Brit, Lorenzl, Stefan, Ludolph, Albert, Benecke, Reiner, Hoglinger, Gunter, Lipp, Axel, Reichmann, Heinz, Woitalla, Dirk, Chan, Dennis, Zermansky, Adam, Burn, David, Lees, Andrew, Gozes, Illana, Boxer, Adam, Lobach, Iryna V, Roberson, Erik, Honig, Lawrence, Zamrini, Edward, Pahwa, Rajesh, Bordelon, Yvette, Driver-Dunkley, Erika, Lessig, Stephanie, Lew, Mark, Womack, Kyle, Boeve, Brad, Ferrara, Joseph, Hillis, Argyle, Kaufer, Daniel, Kumar, Rajeev, Xie, Tao, Gunzler, Steven, Zesiewicz, Theresa, Dayalu, Praveen, Golbe, Lawrence, Grossman, Murray, Jankovic, Joseph, McGinnis, Scott, Santiago, Anthony, Tuite, Paul, Isaacson, Stuart, Leegwater-Kim, Julie, Knopman, David S, Schneider, Lon S, Doody, Rachelle S, Koestler, Mary, Van Deerlin, Viviana, Randolph, Christopher, Whitaker, Steve, Hirman, Joe, Gold, Michael, Morimoto, and , Bruce H

Subjects
Biomedical and Clinical Sciences, Clinical Sciences, Biomedical Imaging, Aging, Rare Diseases, Alzheimer's Disease, Clinical Research, Neurosciences, Brain Disorders, Acquired Cognitive Impairment, Neurodegenerative, Alzheimer's Disease including Alzheimer's Disease Related Dementias (AD/ADRD), Dementia, 2.1 Biological and endogenous factors, Aetiology, Neurological, Aged, Atrophy, Basal Ganglia, Cerebral Cortex, Disease Progression, Female, Follow-Up Studies, Humans, Image Processing, Computer-Assisted, Magnetic Resonance Imaging, Male, Middle Aged, Statistics, Nonparametric, Supranuclear Palsy, Progressive, AL-108-231 investigators, Cognitive Sciences, Neurology & Neurosurgery, Clinical sciences
Abstract

ObjectiveTo examine the utility and reliability of volumetric MRI in measuring disease progression in the 4 repeat tauopathies, progressive supranuclear palsy (PSP) and corticobasal syndrome (CBS), to support clinical development of new tau-directed therapeutic agents.MethodsSix- and 12-month changes in regional MRI volumes and PSP Rating Scale scores were examined in 55 patients with PSP and 33 patients with CBS (78% amyloid PET negative) compared to 30 normal controls from a multicenter natural history study. Longitudinal voxel-based morphometric analyses identified patterns of volume loss, and region-of-interest analyses examined rates of volume loss in brainstem (midbrain, pons, superior cerebellar peduncle), cortical, and subcortical regions based on previously validated atlases. Results were compared to those in a replication cohort of 226 patients with PSP with MRI data from the AL-108-231 clinical trial.ResultsPatients with CBS exhibited greater baseline atrophy and greater longitudinal atrophy rates in cortical and basal ganglia regions than patients with PSP; however, midbrain and pontine atrophy rates were similar. Voxel-wise analyses showed distinct patterns of regional longitudinal atrophy in each group as compared to normal controls. The midbrain/pons volumetric ratio differed between diagnoses but remained stable over time. In both patient groups, brainstem atrophy rates were correlated with disease progression measured using the PSP Rating Scale.ConclusionsVolume loss is quantifiable over a period of 6 months in CBS and PSP. Future clinical trials may be able to combine CBS and PSP to measure therapeutic effects.

Published
2016

16. Predicting disease progression in progressive supranuclear palsy in multicenter clinical trials.

Author

Bang, Jee, Lobach, Iryna V, Lang, Anthony E, Grossman, Murray, Knopman, David S, Miller, Bruce L, Schneider, Lon S, Doody, Rachelle S, Lees, Andrew, Gold, Michael, Morimoto, Bruce H, Boxer, Adam L, and AL-108-231 Investigators

Subjects
AL-108-231 Investigators, Humans, Supranuclear Palsy, Progressive, Disease Progression, Magnetic Resonance Imaging, Prognosis, Middle Aged, Patient Dropouts, Female, Male, Clinical Trials as Topic, Multicenter Studies as Topic, Outcome Assessment, Health Care, Clinical trial methodology, Progressive supranuclear palsy, Neurosciences, Clinical Trials and Supportive Activities, Clinical Research, Mental Health, Neurological, Clinical Sciences, Cognitive Sciences, Neurology & Neurosurgery
Abstract

IntroductionClinical and MRI measurements can track disease progression in PSP, but many have not been extensively evaluated in multicenter clinical trials. We identified optimal measures to capture clinical decline and predict disease progression in multicenter PSP trials.MethodsLongitudinal clinical rating scales, neuropsychological test scores, and volumetric MRI data from an international, phase 2/3 clinical trial of davunetide for PSP (intent to treat population, n = 303) were used to identify measurements with largest effect size, strongest correlation with clinical change, and best ability to predict dropout or clinical decline over one year as measured by PSP Rating Scale (PSPRS).ResultsBaseline cognition as measured by Repeatable Battery for Assessing Neuropsychological Status (RBANS) was associated with attrition, but had only a small effect. PSPRS and Clinical Global Impression (CGI) had the largest effect size for measuring change. Annual change in CGI, RBANS, color trails, and MRI midbrain and ventricular volumes were most strongly correlated with annual PSPRS and had the largest effect sizes for detecting annual change. At baseline, shorter disease duration, more severe depression, and lower performance on RBANS and executive function tests were associated with faster worsening of the PSPRS in completers. With dropouts included, SEADL, RBANS, and executive function tests had significant effect on PSPRS trajectory of change.ConclusionBaseline cognitive status and mood influence the rate of disease progression in PSP. Multiple clinical, neuropsychological, and volumetric MRI measurements are sensitive to change over one year in PSP and appropriate for use in multicenter clinical trials.

Published
2016

17. Accelerating rates of cognitive decline and imaging markers associated with &bgr;-amyloid pathology

Author

Insel, Philip S, Mattsson, Niklas, Mackin, R Scott, Schöll, Michael, Nosheny, Rachel L, Tosun, Duygu, Donohue, Michael C, Aisen, Paul S, Jagust, William J, Weiner, Michael W, Weiner, Michael, Aisen, Paul, Petersen, Ronald, Jack, Clifford R, Jagust, William, Trojanowki, John Q, Toga, Arthur W, Beckett, Laurel, Green, Robert C, Saykin, Andrew J, Morris, John, Liu, Enchi, Montine, Tom, Gamst, Anthony, Thomas, Ronald G, Donohue, Michael, Walter, Sarah, Gessert, Devon, Sather, Tamie, Harvey, Danielle, Kornak, John, Dale, Anders, Bernstein, Matthew, Felmlee, Joel, Fox, Nick, Thompson, Paul, Schuff, Norbert, Alexander, Gene, DeCarli, Charles, Bandy, Dan, Koeppe, Robert A, Foster, Norm, Reiman, Eric M, Chen, Kewei, Mathis, Chet, Cairns, Nigel J, Taylor-Reinwald, Lisa, Trojanowki, JQ, Shaw, Les, Lee, Virginia MY, Korecka, Magdalena, Crawford, Karen, Neu, Scott, Foroud, Tatiana M, Potkin, Steven, Shen, Li, Kachaturian, Zaven, Frank, Richard, Snyder, Peter J, Molchan, Susan, Kaye, Jeffrey, Quinn, Joseph, Lind, Betty, Dolen, Sara, Schneider, Lon S, Pawluczyk, Sonia, Spann, Bryan M, Brewer, James, Vanderswag, Helen, Heidebrink, Judith L, Lord, Joanne L, Johnson, Kris, Doody, Rachelle S, Villanueva-Meyer, Javier, Chowdhury, Munir, Stern, Yaakov, Honig, Lawrence S, Bell, Karen L, Morris, John C, Ances, Beau, Carroll, Maria, Leon, Sue, Mintun, Mark A, Schneider, Stacy, Marson, Daniel, and Griffith, Randall

Subjects
Biomedical and Clinical Sciences, Clinical Sciences, Acquired Cognitive Impairment, Dementia, Neurodegenerative, Biomedical Imaging, Brain Disorders, Aging, Alzheimer's Disease, Alzheimer's Disease including Alzheimer's Disease Related Dementias (AD/ADRD), Neurosciences, Neurological, Aged, Amyloid beta-Peptides, Aniline Compounds, Atrophy, Biomarkers, Brain, Cognition, Cognitive Dysfunction, Disease Progression, Ethylene Glycols, Female, Fluorodeoxyglucose F18, Humans, Longitudinal Studies, Magnetic Resonance Imaging, Male, Mental Status Schedule, Neuropsychological Tests, Peptide Fragments, Positron-Emission Tomography, Radiopharmaceuticals, Regression Analysis, Alzheimer's Disease Neuroimaging Initiative, Cognitive Sciences, Neurology & Neurosurgery, Clinical sciences
Abstract

ObjectiveTo estimate points along the spectrum of β-amyloid pathology at which rates of change of several measures of neuronal injury and cognitive decline begin to accelerate.MethodsIn 460 patients with mild cognitive impairment (MCI), we estimated the points at which rates of florbetapir PET, fluorodeoxyglucose (FDG) PET, MRI, and cognitive and functional decline begin to accelerate with respect to baseline CSF Aβ42. Points of initial acceleration in rates of decline were estimated using mixed-effects regression.ResultsRates of neuronal injury and cognitive and even functional decline accelerate substantially before the conventional threshold for amyloid positivity, with rates of florbetapir PET and FDG PET accelerating early. Temporal lobe atrophy rates also accelerate prior to the threshold, but not before the acceleration of cognitive and functional decline.ConclusionsA considerable proportion of patients with MCI would not meet inclusion criteria for a trial using the current threshold for amyloid positivity, even though on average, they are experiencing cognitive/functional decline associated with prethreshold levels of CSF Aβ42. Future trials in early Alzheimer disease might consider revising the criteria regarding β-amyloid thresholds to include the range of amyloid associated with the first signs of accelerating rates of decline.

Published
2016

18. Assessment of the genetic variance of late-onset Alzheimer's disease

Author

Ridge, Perry G, Hoyt, Kaitlyn B, Boehme, Kevin, Mukherjee, Shubhabrata, Crane, Paul K, Haines, Jonathan L, Mayeux, Richard, Farrer, Lindsay A, Pericak-Vance, Margaret A, Schellenberg, Gerard D, Kauwe, John SK, Consortium, Alzheimer's Disease Genetics, Adams, Perrie M, Albert, Marilyn S, Albin, Roger L, Apostolova, Liana G, Arnold, Steven E, Asthana, Sanjay, Atwood, Craig S, Baldwin, Clinton T, Barber, Robert C, Barmada, Michael M, Barnes, Lisa L, Barral, Sandra, Beach, Thomas G, Becker, James T, Beecham, Gary W, Beekly, Duane, Bennett, David A, Bigio, Eileen H, Bird, Thomas D, Blacker, Deborah, Boeve, Bradley F, Bowen, James D, Boxer, Adam, Burke, James R, Burns, Jeffrey M, Buxbaum, Joseph D, Cairns, Nigel J, Cantwell, Laura B, Cao, Chuanhai, Carlson, Chris S, Carlsson, Cynthia M, Carney, Regina M, Carrasquillo, Minerva M, Carroll, Steven L, Chui, Helena C, Clark, David G, Corneveaux, Jason, Cribbs, David H, Crocco, Elizabeth A, Cruchaga, Carlos, De Jager, Philip L, DeCarli, Charles, Demirci, F Yesim, Dick, Malcolm, Dickson, Dennis W, Doody, Rachelle S, Duara, Ranjan, Ertekin-Taner, Nilufer, Evans, Denis A, Faber, Kelley M, Fairchild, Thomas J, Fallon, Kenneth B, Fardo, David W, Farlow, Martin R, Ferris, Steven, Foroud, Tatiana M, Frosch, Matthew P, Galasko, Douglas R, Gearing, Marla, Geschwind, Daniel H, Ghetti, Bernardino, Gilbert, John R, Goate, Alison M, Graff-Radford, Neill R, Green, Robert C, Growdon, John H, Hakonarson, Hakon, Hamilton, Ronald L, Hamilton-Nelson, Kara L, Hardy, John, Harrell, Lindy E, Honig, Lawrence S, Huebinger, Ryan M, Huentelman, Matthew J, Hulette, Christine M, Hyman, Bradley T, Jarvik, Gail P, Jicha, Gregory A, Jin, Lee-Way, Jun, Gyungah, Kamboh, M Ilyas, Karydas, Anna, Katz, Mindy J, Kaye, Jeffrey A, Kim, Ronald, and Kowall, Neil W

Subjects
Biological Psychology, Biomedical and Clinical Sciences, Neurosciences, Psychology, Neurodegenerative, Genetics, Acquired Cognitive Impairment, Aging, Human Genome, Dementia, Brain Disorders, Alzheimer's Disease including Alzheimer's Disease Related Dementias (AD/ADRD), Alzheimer's Disease, 2.1 Biological and endogenous factors, Neurological, Aged, Aged, 80 and over, Alzheimer Disease, Amyloid beta-Protein Precursor, Datasets as Topic, Female, Genetic Variation, Genome-Wide Association Study, Humans, Male, Membrane Glycoproteins, Netrin Receptors, Polymorphism, Single Nucleotide, Receptors, Cell Surface, Receptors, Immunologic, Risk, Alzheimer's Disease Genetics Consortium, Alzheimer's disease, Genetic variance, Clinical Sciences, Neurology & Neurosurgery, Biological psychology
Abstract

Alzheimer's disease (AD) is a complex genetic disorder with no effective treatments. More than 20 common markers have been identified, which are associated with AD. Recently, several rare variants have been identified in Amyloid Precursor Protein (APP), Triggering Receptor Expressed On Myeloid Cells 2 (TREM2) and Unc-5 Netrin Receptor C (UNC5C) that affect risk for AD. Despite the many successes, the genetic architecture of AD remains unsolved. We used Genome-wide Complex Trait Analysis to (1) estimate phenotypic variance explained by genetics; (2) calculate genetic variance explained by known AD single nucleotide polymorphisms (SNPs); and (3) identify the genomic locations of variation that explain the remaining unexplained genetic variance. In total, 53.24% of phenotypic variance is explained by genetics, but known AD SNPs only explain 30.62% of the genetic variance. Of the unexplained genetic variance, approximately 41% is explained by unknown SNPs in regions adjacent to known AD SNPs, and the remaining unexplained genetic variance outside these regions.

Published
2016

19. Better verbal memory in women than men in MCI despite similar levels of hippocampal atrophy

Author

Sundermann, Erin E, Biegon, Anat, Rubin, Leah H, Lipton, Richard B, Mowrey, Wenzhu, Landau, Susan, Maki, Pauline M, Weiner, Michael, Aisen, Paul, Petersen, Ronald, Jack, Clifford R, Jagust, William, Trojanowki, John Q, Toga, Arthur W, Beckett, Laurel, Green, Robert C, Saykin, Andrew J, Morris, John, Liu, Enchi, Montine, Tom, Gamst, Anthony, Thomas, Ronald G, Donohue, Michael, Walter, Sarah, Gessert, Devon, Sather, Tamie, Harvey, Danielle, Kornak, John, Dale, Anders, Bernstein, Matthew, Felmlee, Joel, Fox, Nick, Thompson, Paul, Schuff, Norbert, Alexander, Gene, DeCarli, Charles, Bandy, Dan, Koeppe, Robert A, Foster, Norm, Reiman, Eric M, Chen, Kewei, Mathis, Chet, Cairns, Nigel J, Taylor-Reinwald, Lisa, Trojanowki, JQ, Shaw, Les, Lee, Virginia MY, Korecka, Magdalena, Crawford, Karen, Neu, Scott, Foroud, Tatiana M, Potkin, Steven, Shen, Li, Kachaturian, Zaven, Frank, Richard, Snyder, Peter J, Molchan, Susan, Kaye, Jeffrey, Quinn, Joseph, Lind, Betty, Dolen, Sara, Schneider, Lon S, Pawluczyk, Sonia, Spann, Bryan M, Brewer, James, Vanderswag, Helen, Heidebrink, Judith L, Lord, Joanne L, Johnson, Kris, Doody, Rachelle S, Villanueva-Meyer, Javier, Chowdhury, Munir, Stern, Yaakov, Honig, Lawrence S, Bell, Karen L, Morris, John C, Ances, Beau, Carroll, Maria, Leon, Sue, Mintun, Mark A, Schneider, Stacy, Marson, Daniel, Griffith, Randall, Clark, David, Grossman, Hillel, and Mitsis, Effie

Subjects
Biomedical and Clinical Sciences, Neurosciences, Clinical Sciences, Prevention, Aging, Behavioral and Social Science, Clinical Research, Alzheimer's Disease, Brain Disorders, Acquired Cognitive Impairment, Neurodegenerative, Alzheimer's Disease including Alzheimer's Disease Related Dementias (AD/ADRD), Clinical Trials and Supportive Activities, Dementia, 2.1 Biological and endogenous factors, Aetiology, Neurological, Aged, Aged, 80 and over, Atrophy, Cognitive Dysfunction, Cross-Sectional Studies, Female, Hippocampus, Humans, Magnetic Resonance Imaging, Male, Memory, Middle Aged, Sex Characteristics, Verbal Learning, Alzheimer's Disease Neuroimaging Initiative, Cognitive Sciences, Neurology & Neurosurgery, Clinical sciences
Abstract

ObjectiveTo examine sex differences in the relationship between clinical symptoms related to Alzheimer disease (AD) (verbal memory deficits) and neurodegeneration (hippocampal volume/intracranial volume ratio [HpVR]) across AD stages.MethodsThe sample included 379 healthy participants, 694 participants with amnestic mild cognitive impairment (aMCI), and 235 participants with AD and dementia from the Alzheimer's Disease Neuroimaging Initiative who completed the Rey Auditory Verbal Learning Test (RAVLT). Cross-sectional analyses were conducted using linear regression to examine the interaction between sex and HpVR on RAVLT across and within diagnostic groups adjusting for age, education, and APOE ε4 status.ResultsAcross groups, there were significant sex × HpVR interactions for immediate and delayed recall (p < 0.01). Women outperformed men among individuals with moderate to larger HpVR, but not among individuals with smaller HpVR. In diagnosis-stratified analyses, the HpVR × sex interaction was significant in the aMCI group, but not in the control or AD dementia groups, for immediate and delayed recall (p < 0.01). Among controls, women outperformed men on both outcomes irrespective of HpVR (p < 0.001). In AD dementia, better RAVLT performance was independently associated with female sex (immediate, p = 0.04) and larger HpVR (delayed, p = 0.001).ConclusionWomen showed an advantage in verbal memory despite evidence of moderate hippocampal atrophy. This advantage may represent a sex-specific form of cognitive reserve delaying verbal memory decline until more advanced disease stages.

Published
2016

20. Periventricular hyperintensities are associated with elevated cerebral amyloid

Author

Marnane, Michael, Al-Jawadi, Osama O, Mortazavi, Shervin, Pogorzelec, Kathleen J, Wang, Bing Wei, Feldman, Howard H, Hsiung, Ging-Yuek R, Weiner, Michael, Aisen, Paul, Petersen, Ronald, Jack, Clifford R, Jagust, William, Trojanowki, John Q, Toga, Arthur W, Beckett, Laurel, Green, Robert C, Saykin, Andrew J, Morris, John, Liu, Enchi, Montine, Tom, Gamst, Anthony, Thomas, Ronald G, Donohue, Michael, Walter, Sarah, Gessert, Devon, Sather, Tamie, Harvey, Danielle, Kornak, John, Dale, Anders, Bernstein, Matthew, Felmlee, Joel, Fox, Nick, Thompson, Paul, Schuff, Norbert, Alexander, Gene, DeCarli, Charles, Bandy, Dan, Koeppe, Robert A, Foster, Norm, Reiman, Eric M, Chen, Kewei, Mathis, Chet, Cairns, Nigel J, Taylor-Reinwald, Lisa, Trojanowki, JQ, Shaw, Les, Lee, Virginia MY, Korecka, Magdalena, Crawford, Karen, Neu, Scott, Foroud, Tatiana M, Potkin, Steven, Shen, Li, Kachaturian, Zaven, Frank, Richard, Snyder, Peter J, Molchan, Susan, Kaye, Jeffrey, Quinn, Joseph, Lind, Betty, Dolen, Sara, Schneider, Lon S, Pawluczyk, Sonia, Spann, Bryan M, Brewer, James, Vanderswag, Helen, Heidebrink, Judith L, Lord, Joanne L, Johnson, Kris, Doody, Rachelle S, Villanueva-Meyer, Javier, Chowdhury, Munir, Stern, Yaakov, Honig, Lawrence S, Bell, Karen L, Morris, John C, Ances, Beau, Carroll, Maria, Leon, Sue, Mintun, Mark A, Schneider, Stacy, Marson, Daniel, Griffith, Randall, Clark, David, Grossman, Hillel, and Mitsis, Effie

Subjects
Biomedical and Clinical Sciences, Clinical Sciences, Prevention, Aging, Clinical Research, Alzheimer's Disease, Neurosciences, Brain Disorders, Acquired Cognitive Impairment, Neurodegenerative, Alzheimer's Disease including Alzheimer's Disease Related Dementias (AD/ADRD), Dementia, 2.1 Biological and endogenous factors, Aetiology, Neurological, Adult, Aged, Aged, 80 and over, Amyloid beta-Peptides, Biomarkers, Cerebral Ventricles, Cognitive Dysfunction, Female, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Positron-Emission Tomography, Prospective Studies, Alzheimer's Disease Neuroimaging Initiative, Cognitive Sciences, Neurology & Neurosurgery, Clinical sciences
Abstract

ObjectiveTo investigate the association between periventricular white mater hyperintensities (PVWMH) and biomarkers of elevated cerebral β-amyloid (Aβ) in the Alzheimer's Disease Neuroimaging Initiative, a large prospective multicenter observational study.MethodsThe burden of frontal, parietal, and occipital PVWMH on 3T fluid-attenuated inversion recovery MRI was evaluated in 698 cognitively normal participants and participants with mild cognitive impairment (MCI) using a novel semiquantitative visual rating scale. Results were correlated with CSF-Aβ, florbetapir-PET, and fluorodeoxyglucose (FDG)-PET.ResultsIncreased burden of parietal, occipital, and frontal PVWMH was associated with elevated cerebral amyloid evidenced by high florbetapir-PET signal (p < 0.01) and low CSF-Aβ (p < 0.01). In logistic regression models, including PVWMH, age, sex, APOE status, vascular risk factors, pulse pressure, vascular secondary prevention medications, education, ethnicity, and race, parietal, occipital, and frontal PVWMH burden was independently associated with high florbetapir-PET uptake (p < 0.05). In a similar logistic regression model, parietal and occipital (p < 0.05) but not frontal (p = 0.05) PVWMH were independently associated with CSF-Aβ. Weaker associations were found between parieto-occipital PVWMH and elevated CSF-tau (p < 0.05) and occipital PVWMH and elevated CSF-phospho-tau (p < 0.05). PVWMH were associated with cerebral hypometabolism on FDG-PET independent of CSF-Aβ levels (p < 0.05). Absolute and consistency of agreement intraclass correlation coefficients were, respectively, 0.83 and 0.83 for frontal, 0.78 and 0.8 for parietal, and 0.45 and 0.75 for occipital PVWMH measurements.ConclusionsIncreased PVWMH were associated with elevated cerebral amyloid independent of potential confounders such as age, APOE genotype, and vascular risk factors. The mechanisms underlying the association between PVWMH and cerebral amyloid remain to be clarified.

Published
2016

21. Circular-SWAT for deep learning based diagnostic classification of Alzheimer's disease: application to metabolome data

Author

Jo, Taeho, primary, Kim, Junpyo, additional, Bice, Paula, additional, Huynh, Kevin, additional, Wang, Tingting, additional, Arnold, Matthias, additional, Meikle, Peter J., additional, Giles, Corey, additional, Kaddurah-Daouk, Rima, additional, Saykin, Andrew J., additional, Nho, Kwangsik, additional, Kueider-Paisley, Alexandra, additional, Doraiswamy, P. Murali, additional, Blach, Colette, additional, Moseley, Arthur, additional, Thompson, Will, additional, St John-Williams, Lisa, additional, Mahmoudiandehkhordi, Siamak, additional, Tenenbaum, Jessica, additional, Welsh-Balmer, Kathleen, additional, Plassman, Brenda, additional, Risacher, Shannon L., additional, Kastenmüller, Gabi, additional, Han, Xianlin, additional, Baillie, Rebecca, additional, Knight, Rob, additional, Dorrestein, Pieter, additional, Brewer, James, additional, Mayer, Emeran, additional, Labus, Jennifer, additional, Baldi, Pierre, additional, Gupta, Arpana, additional, Fiehn, Oliver, additional, Barupal, Dinesh, additional, Meikle, Peter, additional, Mazmanian, Sarkis, additional, Rader, Dan, additional, Kling, Mitchel, additional, Shaw, Leslie, additional, Trojanowski, John, additional, van Duijin, Cornelia, additional, Nevado-Holgado, Alejo, additional, Bennett, David, additional, Krishnan, Ranga, additional, Keshavarzian, Ali, additional, Vogt, Robin, additional, Ikram, Arfan, additional, Hankemeier, Thomas, additional, Thiele, Ines, additional, Price, Nathan, additional, Funk, Cory, additional, Baloni, Priyanka, additional, Jia, Wei, additional, Wishart, David, additional, Brinton, Roberta, additional, Chang, Rui, additional, Farrer, Lindsay, additional, Au, Rhoda, additional, Qiu, Wendy, additional, Würtz, Peter, additional, Koal, Therese, additional, Mangravite, Lara, additional, Krumsiek, Jan, additional, Suhre, Karsten, additional, Newman, John, additional, Moreno, Herman, additional, Foroud, Tatania, additional, Sacks, Frank, additional, Jansson, Janet, additional, Weiner, Michael W., additional, Aisen, Paul, additional, Petersen, Ronald, additional, Jack, Clifford R., additional, Jagust, William, additional, Trojanowki, John Q., additional, Toga, Arthur W., additional, Beckett, Laurel, additional, Green, Robert C., additional, Morris, John C., additional, Perrin, Richard J., additional, Shaw, Leslie M., additional, Khachaturian, Zaven, additional, Carrillo, Maria, additional, Potter, William, additional, Barnes, Lisa, additional, Bernard, Marie, additional, Gonzalez, Hector, additional, Ho, Carole, additional, Hsiao, John K., additional, Jackson, Jonathan, additional, Masliah, Eliezer, additional, Masterman, Donna, additional, Okonkwo, Ozioma, additional, Perrin, Richard, additional, Ryan, Laurie, additional, Silverberg, Nina, additional, Fleisher, Adam, additional, Sacrey, Diana Truran, additional, Fockler, Juliet, additional, Conti, Cat, additional, Veitch, Dallas, additional, Neuhaus, John, additional, Jin, Chengshi, additional, Nosheny, Rachel, additional, Ashford, Miriam, additional, Flenniken, Derek, additional, Kormos, Adrienne, additional, Montine, Tom, additional, Rafii, Michael, additional, Raman, Rema, additional, Jimenez, Gustavo, additional, Donohue, Michael, additional, Gessert, Devon, additional, Salazar, Jennifer, additional, Zimmerman, Caileigh, additional, Cabrera, Yuliana, additional, Walter, Sarah, additional, Miller, Garrett, additional, Coker, Godfrey, additional, Clanton, Taylor, additional, Hergesheimer, Lindsey, additional, Smith, Stephanie, additional, Adegoke, Olusegun, additional, Mahboubi, Payam, additional, Moore, Shelley, additional, Pizzola, Jeremy, additional, Shaffer, Elizabeth, additional, Sloan, Brittany, additional, Harvey, Danielle, additional, Forghanian-Arani, Arvin, additional, Borowski, Bret, additional, Ward, Chad, additional, Schwarz, Christopher, additional, Jones, David, additional, Gunter, Jeff, additional, Kantarci, Kejal, additional, Senjem, Matthew, additional, Vemuri, Prashanthi, additional, Reid, Robert, additional, Fox, Nick C., additional, Malone, Ian, additional, Thompson, Paul, additional, Thomopoulos, Sophia I., additional, Nir, Talia M., additional, Jahanshad, Neda, additional, DeCarli, Charles, additional, Knaack, Alexander, additional, Fletcher, Evan, additional, Tosun-Turgut, Duygu, additional, Chen, Stephanie Rossi, additional, Choe, Mark, additional, Crawford, Karen, additional, Yushkevich, Paul A., additional, Das, Sandhitsu, additional, Koeppe, Robert A., additional, Reiman, Eric M., additional, Chen, Kewei, additional, Mathis, Chet, additional, Landau, Susan, additional, Cairns, Nigel J., additional, Householder, Erin, additional, Franklin, Erin, additional, Bernhardt, Haley, additional, Taylor-Reinwald, Lisa, additional, Korecka, Magdalena, additional, Figurski, Michal, additional, Neu, Scott, additional, Apostolova, Liana G., additional, Shen, Li, additional, Foroud, Tatiana M., additional, Nudelman, Kelly, additional, Faber, Kelley, additional, Wilmes, Kristi, additional, Thal, Leon, additional, Silbert, Lisa C., additional, Lind, Betty, additional, Crissey, Rachel, additional, Kaye, Jeffrey A., additional, Carter, Raina, additional, Dolen, Sara, additional, Quinn, Joseph, additional, Schneider, Lon S., additional, Pawluczyk, Sonia, additional, Becerra, Mauricio, additional, Teodoro, Liberty, additional, Dagerman, Karen, additional, Spann, Bryan M., additional, Vanderswag, Helen, additional, Ziolkowski, Jaimie, additional, Heidebrink, Judith L., additional, Zbizek-Nulph, Lisa, additional, Lord, Joanne L., additional, Mason, Sara S., additional, Albers, Colleen S., additional, Knopman, David, additional, Johnson, Kris, additional, Villanueva-Meyer, Javier, additional, Pavlik, Valory, additional, Pacini, Nathaniel, additional, Lamb, Ashley, additional, Kass, Joseph S., additional, Doody, Rachelle S., additional, Shibley, Victoria, additional, Chowdhury, Munir, additional, Rountree, Susan, additional, Dang, Mimi, additional, Stern, Yaakov, additional, Honig, Lawrence S., additional, Mintz, Akiva, additional, Ances, Beau, additional, Winkfield, David, additional, Carroll, Maria, additional, Stobbs-Cucchi, Georgia, additional, Oliver, Angela, additional, Creech, Mary L., additional, Mintun, Mark A., additional, Schneider, Stacy, additional, Geldmacher, David, additional, Love, Marissa Natelson, additional, Griffith, Randall, additional, Clark, David, additional, Brockington, John, additional, Marson, Daniel, additional, Grossman, Hillel, additional, Goldstein, Martin A., additional, Greenberg, Jonathan, additional, Mitsis, Effie, additional, Shah, Raj C., additional, Lamar, Melissa, additional, Samuels, Patricia, additional, Duara, Ranjan, additional, Greig-Custo, Maria T., additional, Rodriguez, Rosemarie, additional, Albert, Marilyn, additional, Onyike, Chiadi, additional, Farrington, Leonie, additional, Rudow, Scott, additional, Brichko, Rottislav, additional, Kielb, Stephanie, additional, Smith, Amanda, additional, Raj, Balebail Ashok, additional, Fargher, Kristin, additional, Sadowski, Martin, additional, Wisniewski, Thomas, additional, Shulman, Melanie, additional, Faustin, Arline, additional, Rao, Julia, additional, Castro, Karen M., additional, Ulysse, Anaztasia, additional, Chen, Shannon, additional, Sheikh, Mohammed O., additional, Singleton-Garvin, Jamika, additional, Petrella, JeffreyR., additional, James, Olga, additional, Wong, Terence Z., additional, Borges-Neto, Salvador, additional, Karlawish, Jason H., additional, Wolk, David A., additional, Vaishnavi, Sanjeev, additional, Clark, Christopher M., additional, Arnold, Steven E., additional, Smith, Charles D., additional, Jicha, Gregory A., additional, Raslau, Flavius D., additional, Lopez, Oscar L., additional, Oakley, MaryAnn, additional, Simpson, Donna M., additional, Porsteinsson, Anton P., additional, Martin, Kim, additional, Kowalski, Nancy, additional, Keltz, Melanie, additional, Goldstein, Bonnie S., additional, Makino, Kelly M., additional, Ismail, M. Saleem, additional, Brand, Connie, additional, Thai, Gaby, additional, Pierce, Aimee, additional, Yanez, Beatriz, additional, Sosa, Elizabeth, additional, Witbracht, Megan, additional, Kelley, Brendan, additional, Nguyen, Trung, additional, Womack, Kyle, additional, Mathews, Dana, additional, Quiceno, Mary, additional, Levey, Allan I., additional, Lah, James J., additional, Hajjar, Ihab, additional, Cellar, Janet S., additional, Burns, Jeffrey M., additional, Swerdlow, Russell H., additional, Brooks, William M., additional, Silverman, Daniel H.S., additional, Kremen, Sarah, additional, Apostolova, Liana, additional, Tingus, Kathleen, additional, Lu, Po H., additional, Bartzokis, George, additional, Woo, Ellen, additional, Teng, Edmond, additional, Graff-Radford, Neill R., additional, Parfitt, Francine, additional, Poki-Walker, Kim, additional, Farlow, Martin R., additional, Hake, Ann Marie, additional, Matthews, Brandy R., additional, Brosch, Jared R., additional, Herring, Scott, additional, van, Christopher H., additional, Mecca, Adam P., additional, Good, Susan P., additional, MacAvoy, Martha G., additional, Carson, Richard E., additional, Varma, Pradeep, additional, Chertkow, Howard, additional, Vaitekunis, Susan, additional, Hosein, Chris, additional, Black, Sandra, additional, Stefanovic, Bojana, additional, Heyn, Chris (Chinthaka), additional, Robin Hsiung, Ging-Yuek, additional, Kim, Ellen, additional, Mudge, Benita, additional, Sossi, Vesna, additional, Feldman, Howard, additional, Assaly, Michele, additional, Finger, Elizabeth, additional, Pasternak, Stephen, additional, Rachinsky, Irina, additional, Kertesz, Andrew, additional, Drost, Dick, additional, Rogers, John, additional, Grant, Ian, additional, Muse, Brittanie, additional, Rogalski, Emily, additional, Robson, Jordan, additional, Mesulam, M.-Marsel, additional, Kerwin, Diana, additional, Wu, Chuang-Kuo, additional, Johnson, Nancy, additional, Lipowski, Kristine, additional, Weintraub, Sandra, additional, Bonakdarpour, Borna, additional, Pomara, Nunzio, additional, Hernando, Raymundo, additional, Sarrael, Antero, additional, Rosen, Howard J., additional, Miller, Bruce L., additional, Perry, David, additional, Turner, Raymond Scott, additional, Johnson, Kathleen, additional, Reynolds, Brigid, additional, MCCann, Kelly, additional, Poe, Jessica, additional, Sperling, Reisa A., additional, Johnson, Keith A., additional, Marshall, Gad A., additional, Yesavage, Jerome, additional, Taylor, Joy L., additional, Chao, Steven, additional, Coleman, Jaila, additional, White, Jessica D., additional, Lane, Barton, additional, Rosen, Allyson, additional, Tinklenberg, Jared, additional, Belden, Christine M., additional, Atri, Alireza, additional, Clark, Kelly A., additional, Zamrini, Edward, additional, Sabbagh, Marwan, additional, Killiany, Ronald, additional, Stern, Robert, additional, Mez, Jesse, additional, Kowall, Neil, additional, Budson, Andrew E., additional, Obisesan, Thomas O., additional, Ntekim, Oyonumo E., additional, Wolday, Saba, additional, Khan, Javed I., additional, Nwulia, Evaristus, additional, Nadarajah, Sheeba, additional, Lerner, Alan, additional, Ogrocki, Paula, additional, Tatsuoka, Curtis, additional, Fatica, Parianne, additional, Maillard, Pauline, additional, Olichney, John, additional, Carmichael, Owen, additional, Bates, Vernice, additional, Capote, Horacio, additional, Rainka, Michelle, additional, Borrie, Michael, additional, Lee, T.-Y., additional, Bartha, Dr Rob, additional, Johnson, Sterling, additional, Asthana, Sanjay, additional, Carlsson, Cynthia M., additional, Perrin, Allison, additional, Burke, Anna, additional, Scharre, Douglas W., additional, Kataki, Maria, additional, Tarawneh, Rawan, additional, Hart, David, additional, Zimmerman, Earl A., additional, Celmins, Dzintra, additional, Miller, Delwyn D., additional, BolesPonto, Laura L., additional, Smith, Karen Ekstam, additional, Koleva, Hristina, additional, Shim, Hyungsub, additional, Nam, Ki Won, additional, Schultz, Susan K., additional, Williamson, Jeff D., additional, Craft, Suzanne, additional, Cleveland, Jo, additional, Yang, Mia, additional, Sink, Kaycee M., additional, Ott, Brian R., additional, Drake, Jonathan, additional, Tremont, Geoffrey, additional, Daiello, Lori A., additional, Drake, Jonathan D., additional, Ritter, Aaron, additional, Bernick, Charles, additional, Munic, Donna, additional, O'Connelll, Abigail, additional, Mintzer, Jacobo, additional, Wiliams, Arthur, additional, Masdeu, Joseph, additional, Shi, Jiong, additional, Garcia, Angelica, additional, Newhouse, Paul, additional, Potkin, Steven, additional, Salloway, Stephen, additional, Malloy, Paul, additional, Correia, Stephen, additional, Kittur, Smita, additional, Pearlson, Godfrey D., additional, Blank, Karen, additional, Anderson, Karen, additional, Flashman, Laura A., additional, Seltzer, Marc, additional, Hynes, Mary L., additional, Santulli, Robert B., additional, Relkin, Norman, additional, Chiang, Gloria, additional, Lee, Athena, additional, Lin, Michael, additional, Ravdin, Lisa, additional, Petersen, Ron, additional, Neylan, Thomas, additional, Grafman, Jordan, additional, Danowski, Sarah, additional, Nguyen-Barrera, Catherine, additional, Hayes, Jacqueline, additional, Finley, Shannon, additional, Bernstein, Matthew, additional, Senjem, Matt, additional, Foster, Norm, additional, Kim, Sungeun, additional, Sood, Ajay, additional, Blanchard, Kimberly S., additional, Fleischman, Debra, additional, Arfanakis, Konstantinos, additional, Varon, Daniel, additional, Greig, Maria T., additional, Petrella, Jeffrey R., additional, Goldstein, Bonnie, additional, Martin, Kimberly S., additional, Reist, Christopher, additional, Sadowsky, Carl, additional, Martinez, Walter, additional, Villena, Teresa, additional, Rosen, Howard, additional, Marshall, Gad, additional, Peskind, Elaine R., additional, Petrie, Eric C., additional, Li, Gail, additional, Mackin, Scott, additional, Jimenez-Maggiora, Gustavo, additional, Drake, Erin, additional, Donohue, Mike, additional, Nelson, Craig, additional, Bickford, David, additional, Butters, Meryl, additional, Zmuda, Michelle, additional, Reyes, Denise, additional, Faber, Kelley M., additional, Nudelman, Kelly N., additional, Au, Yiu Ho, additional, Scherer, Kelly, additional, Catalinotto, Daniel, additional, Stark, Samuel, additional, Ong, Elise, additional, and Fernandez, Dariella, additional

Published
2023
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22. Alzheimer’s disease progression by geographical region in a clinical trial setting

Author

Henley, David B, Dowsett, Sherie A, Chen, Yun-Fei, Liu-Seifert, Hong, Grill, Joshua D, Doody, Rachelle S, Aisen, Paul, Raman, Rema, Miller, David S, Hake, Ann M, and Cummings, Jeffrey

Subjects
Health Services and Systems, Biomedical and Clinical Sciences, Health Sciences, Dementia, Acquired Cognitive Impairment, Aging, Alzheimer's Disease, Brain Disorders, Clinical Trials and Supportive Activities, Clinical Research, Neurosciences, Alzheimer's Disease including Alzheimer's Disease Related Dementias (AD/ADRD), Neurodegenerative, Neurological, Medical and Health Sciences, Biomedical and clinical sciences, Health sciences
Abstract

IntroductionTo facilitate enrollment and meet local registration requirements, sponsors have increasingly implemented multi-national Alzheimer's disease (AD) studies. Geographic regions vary on many dimensions that may affect disease progression or its measurement. To aid researchers designing and implementing Phase 3 AD trials, we assessed disease progression across geographic regions using placebo data from four large, multi-national clinical trials of investigational compounds developed to target AD pathophysiology.MethodsFour similarly-designed 76 to 80 week, randomized, double-blind placebo-controlled trials with nearly identical entry criteria enrolled patients aged ≥55 years with mild or moderate NINCDS/ADRDA probable AD. Descriptive analyses were performed for observed mean score and observed mean change in score from baseline at each scheduled visit. Data included in the analyses were pooled from the intent-to-treat placebo-assigned overall (mild and moderate) AD dementia populations from all four studies. Disease progression was assessed as change from baseline for each of 5 scales - the AD Assessment Scale-cognitive subscale (ADAS-cog11), the AD Cooperative Study- Activities of Daily Living Scale (ADCS-ADL), Mini-Mental State Examination (MMSE), the Clinical Dementia Rating scored by the sum of boxes method (CDR-SB), and the Neuropsychiatric Inventory (NPI).ResultsRegions were heterogeneous at baseline. At baseline, disease severity as measured by ADAS-cog11, ADCS-ADL, and CDR-SB was numerically worse for Eastern Europe/Russia compared with other regions. Of all regional populations, Eastern Europe/Russia showed the greatest cognitive and functional decline from baseline; Japan, Asia and/or S. America/Mexico showed the least cognitive and functional decline.ConclusionsThese data suggest that in multi-national clinical trials, AD progression or its measurement may differ across geographic regions; this may be in part due to heterogeneity across populations at baseline. The observed differences in AD progression between outcome measures across geographic regions may generalize to 'real-world' clinic populations, where heterogeneity is the norm.Trial registrationsClinicalTrials.gov NCT00594568 - IDENTITY. Registered 11 January 2008. ClinicalTrials.gov NCT00762411 - IDENTITY2. Registered 26 September 2008 ClinicalTrials.gov NCT00905372 - EXPEDITION. Registered 18 May 2009 ClinicalTrials.gov NCT00904683 - EXPEDITION2. Registered 18 May 2009.

Published
2015

23. Comparing recruitment, retention, and safety reporting among geographic regions in multinational Alzheimer’s disease clinical trials

Author

Grill, Joshua D, Raman, Rema, Ernstrom, Karin, Aisen, Paul, Dowsett, Sherie A, Chen, Yun-Fei, Liu-Seifert, Hong, Hake, Ann Marie, Miller, David S, Doody, Rachelle S, Henley, David B, and Cummings, Jeffrey L

Subjects
Health Services and Systems, Health Sciences, Aging, Neurodegenerative, Clinical Trials and Supportive Activities, Alzheimer's Disease including Alzheimer's Disease Related Dementias (AD/ADRD), Alzheimer's Disease, Acquired Cognitive Impairment, Dementia, Clinical Research, Brain Disorders, Neurosciences, Neurological, Medical and Health Sciences, Biomedical and clinical sciences, Health sciences
Abstract

IntroductionMost Alzheimer's disease (AD) clinical trials enroll participants multinationally. Yet, few data exist to guide investigators and sponsors regarding the types of patients enrolled in these studies and whether participant characteristics vary by region.MethodsWe used data derived from four multinational phase III trials in mild to moderate AD to examine whether regional differences exist with regard to participant demographics, safety reporting, and baseline scores on the Mini Mental State Examination (MMSE), the 11-item Alzheimer's Disease Assessment Scale-Cognitive subscale (ADAS-cog11), the Clinical Dementia Rating scale Sum of Boxes (CDR-SB), the Alzheimer's Disease Cooperative Study-Activities of Daily Living Inventory (ADCS-ADL), and the Neuropsychiatric Inventory (NPI). We assigned 31 participating nations to 7 geographic regions: North America, South America/Mexico, Western Europe/Israel, Eastern Europe/Russia, Australia/South Africa, Asia, and Japan.ResultsNorth America, Western Europe/Israel, and Australia/South Africa enrolled similar proportions of men, apolipoprotein E ε4 carriers, and participants with spouse study partners, whereas Asia, Eastern Europe/Russia, and South America/Mexico had lower proportions for these variables. North America and South America/Mexico enrolled older subjects, whereas Asia and South America/Mexico enrolled less-educated participants than the remaining regions. Approved AD therapy use differed among regions (range: 73% to 92%) and was highest in North America, Western Europe/Israel, and Japan. Dual therapy was most frequent in North America (48%). On the MMSE, North America, Western Europe/Israel, Japan, and Australia/South Africa had higher (better) scores, and Asia, South America/Mexico, and Eastern Europe/Russia had lower scores. Eastern Europe/Russia had more impaired ADAS-cog11 scores than all other regions. Eastern Europe/Russia and South America/Mexico had more impaired scores for the ADCS-ADL and the CDR-SB. Mean scores for the CDR-SB in Asia were milder than all regions except Japan. NPI scores were lower in Asia and Japan than in all other regions. Participants in North America and Western Europe/Israel reported more adverse events than those in Eastern Europe/Russia and Japan.ConclusionsThese findings suggest that trial populations differ across geographic regions on most baseline characteristics and that multinational enrollment is associated with sample heterogeneity. The data provide initial guidance with regard to the regional differences that contribute to this heterogeneity and are important to consider when planning global trials.

Published
2015

24. Peripheral and central effects of γ-secretase inhibition by semagacestat in Alzheimer’s disease

Author

Doody, Rachelle S, Raman, Rema, Sperling, Reisa A, Seimers, Eric, Sethuraman, Gopalan, Mohs, Richard, Farlow, Martin, Iwatsubo, Takeshi, Vellas, Bruno, Sun, Xiaoying, Ernstrom, Karin, Thomas, Ronald G, Aisen, Paul S, and for the Alzheimer’s Disease Cooperative Study

Subjects
Neurodegenerative, Aging, Acquired Cognitive Impairment, Brain Disorders, Clinical Research, Alzheimer's Disease including Alzheimer's Disease Related Dementias (AD/ADRD), Clinical Trials and Supportive Activities, Alzheimer's Disease, Neurosciences, Dementia, Evaluation of treatments and therapeutic interventions, 5.1 Pharmaceuticals, Development of treatments and therapeutic interventions, 6.1 Pharmaceuticals, Neurological, Alzheimer’s Disease Cooperative Study, Medical and Health Sciences
Abstract

IntroductionThe negative efficacy study examining the γ-secretase inhibitor semagacestat in mild to moderate Alzheimer's disease (AD) included a number of biomarkers of the disease as well as safety outcomes. We analyzed these data to explore relationships between drug exposure and pharmacodynamic effects and to examine the correlations among outcome measures.MethodsThe study was a multicenter, randomized, placebo-controlled trial of two dose regimens of semagacestat and a placebo administered for 18 months to individuals with mild to moderate AD. Changes in measures of central and peripheral drug activity were compared between the three treatment groups using one-way analysis of variance. The relationship between changes in each of the outcome measures and measures of drug exposure and peripheral pharmacodynamic effect were assessed using Spearman's correlation coefficient.ResultsAssignment to the active treatment arms was associated with reduction in plasma amyloid-β (Aβ) peptides, increase in ventricular volume, decrease in cerebrospinal fluid phosphorylated tau (p-tau) and several other laboratory measures and adverse event categories. Within the active arms, exposure to drug, as indicated by area under the concentration curve (AUC) of blood concentration, was associated with reduction in plasma Aβ peptides and a subset of laboratory changes and adverse event rates. Ventricular volume increase, right hippocampal volume loss and gastrointestinal symptoms were related to change in plasma Aβ peptide but not AUC, supporting a link to inhibition of γ-secretase cleavage of the amyloid precursor protein. Cognitive decline correlated with ventricular expansion and reduction in p-tau.ConclusionThese findings may inform future studies of drugs targeting secretases involved in Aβ generation.Trial registrationClinicalTrials.gov Identifier: NCT00594568. Registered 11 January 2008.

Published
2015

25. Memory, executive, and multidomain subtle cognitive impairment

Author

Toledo, Jon B, Bjerke, Maria, Chen, Kewei, Rozycki, Martin, Jack, Clifford R, Weiner, Michael W, Arnold, Steven E, Reiman, Eric M, Davatzikos, Christos, Shaw, Leslie M, Trojanowski, John Q, Weiner, Michael, Aisen, Paul, Petersen, Ronald, Jagust, William, Trojanowki, John Q, Toga, Arthur W, Beckett, Laurel, Green, Robert C, Saykin, Andrew J, Morris, John, Liu, Enchi, Montine, Tom, Gamst, Anthony, Thomas, Ronald G, Donohue, Michael, Walter, Sarah, Gessert, Devon, Sather, Tamie, Harvey, Danielle, Kornak, John, Dale, Anders, Bernstein, Matthew, Felmlee, Joel, Fox, Nick, Thompson, Paul, Schuff, Norbert, Alexander, Gene, DeCarli, Charles, Bandy, Dan, Koeppe, Robert A, Foster, Norm, Mathis, Chet, Cairns, Nigel J, Taylor-Reinwald, Lisa, Trojanowki, JQ, Shaw, Les, Lee, Virginia MY, Korecka, Magdalena, Crawford, Karen, Neu, Scott, Foroud, Tatiana M, Potkin, Steven, Shen, Li, Kachaturian, Zaven, Frank, Richard, Snyder, Peter J, Molchan, Susan, Kaye, Jeffrey, Quinn, Joseph, Lind, Betty, Dolen, Sara, Schneider, Lon S, Pawluczyk, Sonia, Spann, Bryan M, Brewer, James, Vanderswag, Helen, Heidebrink, Judith L, Lord, Joanne L, Johnson, Kris, Doody, Rachelle S, Villanueva-Meyer, Javier, Chowdhury, Munir, Stern, Yaakov, Honig, Lawrence S, Bell, Karen L, Morris, John C, Ances, Beau, Leon, Sue, Schneider, Stacy, Marson, Daniel, Griffith, Randall, and Clark, David

Subjects
Biomedical and Clinical Sciences, Neurosciences, Clinical Sciences, Biomedical Imaging, Aging, Behavioral and Social Science, Clinical Research, Alzheimer's Disease, Acquired Cognitive Impairment, Brain Disorders, Neurodegenerative, Alzheimer's Disease including Alzheimer's Disease Related Dementias (AD/ADRD), Dementia, Detection, screening and diagnosis, 4.1 Discovery and preclinical testing of markers and technologies, Neurological, Mental health, Aged, Aged, 80 and over, Alzheimer Disease, Biomarkers, Brain, Cognition Disorders, Cognitive Dysfunction, Disease Progression, Executive Function, Female, Humans, Magnetic Resonance Imaging, Male, Memory Disorders, Multimodal Imaging, Positron-Emission Tomography, Alzheimer's Disease Neuroimaging Initiative, Cognitive Sciences, Neurology & Neurosurgery, Clinical sciences
Abstract

ObjectiveWe studied the biomarker signatures and prognoses of 3 different subtle cognitive impairment (SCI) groups (executive, memory, and multidomain) as well as the subjective memory complaints (SMC) group.MethodsWe studied 522 healthy controls in the Alzheimer's Disease Neuroimaging Initiative (ADNI). Cutoffs for executive, memory, and multidomain SCI were defined using participants who remained cognitively normal (CN) for 7 years. CSF Alzheimer disease (AD) biomarkers, composite and region-of-interest (ROI) MRI, and fluorodeoxyglucose-PET measures were compared in these participants.ResultsUsing a stringent cutoff (fifth percentile), 27.6% of the ADNI participants were classified as SCI. Most single ROI or global-based measures were not sensitive to detect differences between groups. Only MRI-SPARE-AD (Spatial Pattern of Abnormalities for Recognition of Early AD), a quantitative MRI pattern-based global index, showed differences between all groups, excluding the executive SCI group. Atrophy patterns differed in memory SCI and SMC. The CN and the SMC groups presented a similar distribution of preclinical dementia stages. Fifty percent of the participants with executive, memory, and multidomain SCI progressed to mild cognitive impairment or dementia at 7, 5, and 2 years, respectively.ConclusionsOur results indicate that (1) the different SCI categories have different clinical prognoses and biomarker signatures, (2) longitudinally followed CN subjects are needed to establish clinical cutoffs, (3) subjects with SMC show a frontal pattern of brain atrophy, and (4) pattern-based analyses outperform commonly used single ROI-based neuroimaging biomarkers and are needed to detect initial stages of cognitive impairment.

Published
2015

26. Brain structure and function as mediators of the effects of amyloid on memory

Author

Mattsson, Niklas, Insel, Philip S, Aisen, Paul S, Jagust, William, Mackin, Scott, Weiner, Michael, Aisen, Paul, Petersen, Ronald, Jack, Clifford R, Trojanowki, John Q, Toga, Arthur W, Beckett, Laurel, Green, Robert C, Saykin, Andrew J, Morris, John, Liu, Enchi, Montine, Tom, Gamst, Anthony, Thomas, Ronald G, Donohue, Michael, Walter, Sarah, Gessert, Devon, Sather, Tamie, Harvey, Danielle, Kornak, John, Dale, Anders, Bernstein, Matthew, Felmlee, Joel, Fox, Nick, Thompson, Paul, Schuff, Norbert, Alexander, Gene, DeCarli, Charles, Bandy, Dan, Koeppe, Robert A, Foster, Norm, Reiman, Eric M, Chen, Kewei, Mathis, Chet, Cairns, Nigel J, Taylor-Reinwald, Lisa, Trojanowki, JQ, Shaw, Les, Lee, Virginia MY, Korecka, Magdalena, Crawford, Karen, Neu, Scott, Foroud, Tatiana M, Potkin, Steven, Shen, Li, Kachaturian, Zaven, Frank, Richard, Snyder, Peter J, Molchan, Susan, Kaye, Jeffrey, Quinn, Joseph, Lind, Betty, Dolen, Sara, Schneider, Lon S, Pawluczyk, Sonia, Spann, Bryan M, Brewer, James, Vanderswag, Helen, Heidebrink, Judith L, Lord, Joanne L, Johnson, Kris, Doody, Rachelle S, Villanueva-Meyer, Javier, Chowdhury, Munir, Stern, Yaakov, Honig, Lawrence S, Bell, Karen L, Morris, John C, Ances, Beau, Carroll, Maria, Leon, Sue, Mintun, Mark A, Schneider, Stacy, Marson, Daniel, Griffith, Randall, Clark, David, Grossman, Hillel, Mitsis, Effie, and Romirowsky, Aliza

Subjects
Biomedical and Clinical Sciences, Neurosciences, Clinical Sciences, Biomedical Imaging, Aging, Alzheimer's Disease, Acquired Cognitive Impairment, Brain Disorders, Neurodegenerative, Alzheimer's Disease including Alzheimer's Disease Related Dementias (AD/ADRD), Dementia, 2.1 Biological and endogenous factors, Aetiology, Neurological, Mental health, Aged, Aged, 80 and over, Amyloid beta-Peptides, Brain, Cohort Studies, Female, Follow-Up Studies, Humans, Male, Memory, Episodic, Middle Aged, Prospective Studies, Radionuclide Imaging, Alzheimer's Disease Neuroimaging Initiative, Cognitive Sciences, Neurology & Neurosurgery, Clinical sciences
Abstract

ObjectiveThe objective of this study was to test whether effects of β-amyloid (Aβ) pathology on episodic memory were mediated by metabolism and gray matter volume in the early stages of Alzheimer disease.MethodsThis was a prospective cohort study. We measured baseline Aβ (using florbetapir-PET), brain function (using fluorodeoxyglucose-PET), and brain structure (using MRI). A mediation analysis was performed to test whether statistical effects of Aβ positivity on cross-sectional and longitudinal episodic memory were mediated by hypometabolism or regional gray matter volume in cognitively healthy controls (CN, n = 280) and mild cognitive impairment (MCI, n = 463).ResultsLower memory scores were associated with Aβ positivity (CN, mildly; MCI, strongly), smaller gray matter volumes (CN, few regions, including hippocampus; MCI, widespread), and hypometabolism. Smaller volumes and hypometabolism mediated effects of Aβ in MCI but not in CN. The strongest individual regions mediated up to approximately 25%. A combination of brain structure and function mediated up to approximately 40%. In several regions, gray matter atrophy and hypometabolism predicted episodic memory without being associated (at p < 0.05) with Aβ positivity.ConclusionsChanges in brain structure and function appear to be, in part, downstream events from Aβ pathology, ultimately resulting in episodic memory deficits. However, Aβ pathology is also strongly related to memory deficits through mechanisms that are not quantified by these imaging measurements, and episodic memory decline is partly caused by Alzheimer disease-like brain changes independently of Aβ pathology.

Published
2015

27. Brain amyloidosis ascertainment from cognitive, imaging, and peripheral blood protein measures

Author

Apostolova, Liana G, Hwang, Kristy S, Avila, David, Elashoff, David, Kohannim, Omid, Teng, Edmond, Sokolow, Sophie, Jack, Clifford R, Jagust, William J, Shaw, Leslie, Trojanowski, John Q, Weiner, Michael W, Thompson, Paul M, Weiner, Michael, Aisen, Paul, Petersen, Ronald, Jagust, Wiliam, Trojanowki, JQ, Toga, Arthur W, Beckett, Laurel, Green, Robert C, Gamst, Anthony, Sakin, Andrew J, Morris, John, Potter, William Z, Montine, Tom, Donohue, Michael, Walter, Sarah, Dale, Anders, Bernstein, Matthew, Felmlee, Joel, Fox, Nick, Thompson, Paul, Schuff, Norbert, Alexander, Gene, DeCarli, Charles, Bandy, Dan, Koeppe, Robert A, Foster, Norm, Reiman, Eric M, Chen, Kewei, Mathis, Chet, Cairns, Nigel J, Taylor-Reinwald, Lisa, Shaw, Lee, Lee, Virginia M-Y, Korecka, Magdalena, Crawford, Karen, Neu, Scott, Harvey, Danielle, Kornak, John, Foroud, Tatiana M, Potkin, Steven, Shen, Li, Kachaturian, Zaven, Frank, Richard, Snyder, Peter J, Molchan, Susan, Kaye, Jeffrey, Dolen, Sara, Quinn, Joseph, Schneider, Lon, Pawluczyk, Sonia, Spann, Bryan M, Brewer, James, Vanderswag, Helen, Heidebrink, Judith L, Lord, Joanne L, Johnson, Kris, Doody, Rachelle S, Villanueva-Meyer, Javier, Chowdhury, Munir, Stern, Yaakov, Honig, Lawrence S, Bell, Karen L, Mintun, Mark A, Schneider, Stacy, Marson, Daniel, Griffith, Randall, Clark, David, Grossman, Hillel, Tang, Cheuk, Marzloff, George, deToledo-Morrell, Leyla, Shah, Raj C, Duara, Ranjan, Varon, Daniel, Robers, Peggy, Albert, Marilyn S, Kozauer, Nicholas, Zerrate, Maria, Rusinek, Henry, de Leon, Mony J, De Santi, Susan M, Doraiswamy, P Murali, Petrella, Jeffrey R, Aiello, Marilyn, Arnold, Steve, and Karlawish, Jason H

Subjects
Biomedical and Clinical Sciences, Neurosciences, Clinical Sciences, Biomedical Imaging, Aging, Behavioral and Social Science, Clinical Research, Alzheimer's Disease, Acquired Cognitive Impairment, Brain Disorders, Neurodegenerative, Alzheimer's Disease including Alzheimer's Disease Related Dementias (AD/ADRD), Dementia, 4.2 Evaluation of markers and technologies, 4.1 Discovery and preclinical testing of markers and technologies, Detection, screening and diagnosis, Neurological, Aged, Algorithms, Alzheimer Disease, Amyloid beta-Peptides, Amyloidosis, Aniline Compounds, Biomarkers, Brain, Cognition, Cognitive Dysfunction, Cohort Studies, Databases, Factual, Disease Progression, Female, Humans, Male, Neuropsychological Tests, Pattern Recognition, Automated, Peptide Fragments, Positron-Emission Tomography, Sensitivity and Specificity, Thiazoles, Alzheimer's Disease Neuroimaging Initiative, Cognitive Sciences, Neurology & Neurosurgery, Clinical sciences
Abstract

BackgroundThe goal of this study was to identify a clinical biomarker signature of brain amyloidosis in the Alzheimer's Disease Neuroimaging Initiative 1 (ADNI1) mild cognitive impairment (MCI) cohort.MethodsWe developed a multimodal biomarker classifier for predicting brain amyloidosis using cognitive, imaging, and peripheral blood protein ADNI1 MCI data. We used CSF β-amyloid 1-42 (Aβ42) ≤ 192 pg/mL as proxy measure for Pittsburgh compound B (PiB)-PET standard uptake value ratio ≥ 1.5. We trained our classifier in the subcohort with CSF Aβ42 but no PiB-PET data and tested its performance in the subcohort with PiB-PET but no CSF Aβ42 data. We also examined the utility of our biomarker signature for predicting disease progression from MCI to Alzheimer dementia.ResultsThe CSF training classifier selected Mini-Mental State Examination, Trails B, Auditory Verbal Learning Test delayed recall, education, APOE genotype, interleukin 6 receptor, clusterin, and ApoE protein, and achieved leave-one-out accuracy of 85% (area under the curve [AUC] = 0.8). The PiB testing classifier achieved an AUC of 0.72, and when classifier self-tuning was allowed, AUC = 0.74. The 36-month disease-progression classifier achieved AUC = 0.75 and accuracy = 71%.ConclusionsAutomated classifiers based on cognitive and peripheral blood protein variables can identify the presence of brain amyloidosis with a modest level of accuracy. Such methods could have implications for clinical trial design and enrollment in the near future.Classification of evidenceThis study provides Class II evidence that a classification algorithm based on cognitive, imaging, and peripheral blood protein measures identifies patients with brain amyloid on PiB-PET with moderate accuracy (sensitivity 68%, specificity 78%).

Published
2015

28. Mild cognitive impairment with suspected nonamyloid pathology (SNAP)

Author

Caroli, Anna, Prestia, Annapaola, Galluzzi, Samantha, Ferrari, Clarissa, van der Flier, Wiesje M, Ossenkoppele, Rik, Van Berckel, Bart, Barkhof, Frederik, Teunissen, Charlotte, Wall, Anders E, Carter, Stephen F, Schöll, Michael, Choo, Il Han, Grimmer, Timo, Redolfi, Alberto, Nordberg, Agneta, Scheltens, Philip, Drzezga, Alexander, Frisoni, Giovanni B, Weiner, Michael, Aisen, Paul, Petersen, Ronald, Jack, Clifford R, Jagust, William, Trojanowki, JQ, Toga, Arthur W, Beckett, Laurel, Green, Robert C, Gamst, Anthony, Saykin, Andrew J, Morris, John, Potter, William Z, Montine, Tom, Thomas, Ronald G, Donohue, Michael, Walter, Sarah, Dale, Anders, Bernstein, Matthew, Felmlee, Joel, Fox, Nick, Thompson, Paul, Schuff, Norbert, Alexander, Gene, DeCarli, Charles, Bandy, Dan, Koeppe, Robert A, Foster, Norm, Reiman, Eric M, Chen, Kewei, Mathis, Chet, Cairns, Nigel J, Taylor-Reinwald, Lisa, Shaw, Les, Lee, Virginia M-Y, Korecka, Magdalena, Crawford, Karen, Neu, Scott, Harvey, Danielle, Kornak, John, Foroud, Tatiana M, Potkin, Steven, Shen, Li, Kachaturian, Zaven, Frank, Richard, Snyder, Peter J, Molchan, Susan, Kaye, Jeffrey, Dolen, Sara, Quinn, Joseph, Schneider, Lon, Pawluczyk, Sonia, Spann, Bryan M, Brewer, James, Vanderswag, Helen, Heidebrink, Judith L, Lord, Joanne L, Johnson, Kris, Doody, Rachelle S, Villanueva-Meyer, Javier, Chowdhury, Munir, Stern, Yaakov, Honig, Lawrence S, Bell, Karen L, Morris, John C, and Mintun, Mark A

Subjects
Biomedical and Clinical Sciences, Clinical Sciences, Aging, Alzheimer's Disease, Neurosciences, Brain Disorders, Acquired Cognitive Impairment, Neurodegenerative, Alzheimer's Disease including Alzheimer's Disease Related Dementias (AD/ADRD), Dementia, 2.1 Biological and endogenous factors, Aetiology, Neurological, Aged, Aged, 80 and over, Cognitive Dysfunction, Databases, Factual, Disease Progression, Female, Follow-Up Studies, Humans, Male, Middle Aged, Neurodegenerative Diseases, Plaque, Amyloid, Predictive Value of Tests, Alzheimer's Disease Neuroimaging Initiative, Cognitive Sciences, Neurology & Neurosurgery, Clinical sciences
Abstract

ObjectivesThe aim of this study was to investigate predictors of progressive cognitive deterioration in patients with suspected non-Alzheimer disease pathology (SNAP) and mild cognitive impairment (MCI).MethodsWe measured markers of amyloid pathology (CSF β-amyloid 42) and neurodegeneration (hippocampal volume on MRI and cortical metabolism on [(18)F]-fluorodeoxyglucose-PET) in 201 patients with MCI clinically followed for up to 6 years to detect progressive cognitive deterioration. We categorized patients with MCI as A+/A- and N+/N- based on presence/absence of amyloid pathology and neurodegeneration. SNAPs were A-N+ cases.ResultsThe proportion of progressors was 11% (8/41), 34% (14/41), 56% (19/34), and 71% (60/85) in A-N-, A+N-, SNAP, and A+N+, respectively; the proportion of APOE ε4 carriers was 29%, 70%, 31%, and 71%, respectively, with the SNAP group featuring a significantly different proportion than both A+N- and A+N+ groups (p ≤ 0.005). Hypometabolism in SNAP patients was comparable to A+N+ patients (p = 0.154), while hippocampal atrophy was more severe in SNAP patients (p = 0.002). Compared with A-N-, SNAP and A+N+ patients had significant risk of progressive cognitive deterioration (hazard ratio = 2.7 and 3.8, p = 0.016 and p < 0.001), while A+N- patients did not (hazard ratio = 1.13, p = 0.771). In A+N- and A+N+ groups, none of the biomarkers predicted time to progression. In the SNAP group, lower time to progression was correlated with greater hypometabolism (r = 0.42, p = 0.073).ConclusionsOur findings support the notion that patients with SNAP MCI feature a specific risk progression profile.

Published
2015

29. The TOMMORROW study: Design of an Alzheimer's disease delay-of-onset clinical trial

Author

Dubois, Bruno, Cummings, Jeffrey, Doody, Rachelle, Lyketsos, Constantine, Reiman, Eric, Welsh-Bohmer, Kathleen A., Sano, Mary, Schneider, Lon, Craft, Suzanne, Espeland, Mark, Monsch, Andreas, Burns, Daniel K., Chiang, Carl, Brannan, Stephen K., Culp, Meredith, O'Neil, Janet, Runyan, Grant, Harrigan, Patrick, Plassman, Brenda L., Lutz, Michael, Lai, Eric, Haneline, Stephen, Yarnall, David, Yarbrough, Deborah, Metz, Craig, Ponduru, Sridevi, Sundseth, Scott, and Saunders, Ann M.

Published
2019
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30. Davunetide in patients with progressive supranuclear palsy: a randomised, double-blind, placebo-controlled phase 2/3 trial

Author

Boxer, Adam L, Lang, Anthony E, Grossman, Murray, Knopman, David S, Miller, Bruce L, Schneider, Lon S, Doody, Rachelle S, Lees, Andrew, Golbe, Lawrence I, Williams, David R, Corvol, Jean-Cristophe, Ludolph, Albert, Burn, David, Lorenzl, Stefan, Litvan, Irene, Roberson, Erik D, Höglinger, Günter U, Koestler, Mary, Jack, Clifford R, Van Deerlin, Viviana, Randolph, Christopher, Lobach, Iryna V, Heuer, Hilary W, Gozes, Illana, Parker, Lesley, Whitaker, Steve, Hirman, Joe, Stewart, Alistair J, Gold, Michael, Morimoto, Bruce H, and Investigators, for the AL-108-231

Subjects
Biomedical and Clinical Sciences, Clinical Sciences, Rare Diseases, Clinical Research, Clinical Trials and Supportive Activities, Brain Disorders, Neurosciences, Evaluation of treatments and therapeutic interventions, 6.1 Pharmaceuticals, Aged, Double-Blind Method, Female, Humans, Male, Oligopeptides, Supranuclear Palsy, Progressive, Treatment Outcome, AL-108-231 Investigators, Neurology & Neurosurgery, Clinical sciences
Abstract

BackgroundIn preclinical studies, davunetide promoted microtubule stability and reduced tau phosphorylation. Because progressive supranuclear palsy (PSP) is linked to tau pathology, davunetide could be a treatment for PSP. We assessed the safety and efficacy of davunetide in patients with PSP.MethodsIn a double-blind, parallel group, phase 2/3 trial, participants were randomly assigned with permuted blocks in a 1:1 ratio to davunetide (30 mg twice daily, intranasally) or placebo for 52 weeks at 48 centres in Australia, Canada, France, Germany, the UK, and the USA. Participants met the modified Neuroprotection and Natural History in Parkinson Plus Syndrome study criteria for PSP. Primary endpoints were the change from baseline in PSP Rating Scale (PSPRS) and Schwab and England Activities of Daily Living (SEADL) scale at up to 52 weeks. All participants and study personnel were masked to treatment assignment. Analysis was by intention to treat. The trial is registered with Clinicaltrials.gov, number NCT01110720.Findings313 participants were randomly assigned to davunetide (n=157) or to placebo (n=156), and 241 (77%) completed the study (118 and 156 in the davunetide and placebo groups, respectively). There were no differences in the davunetide and placebo groups in the baseline PSPRS and SEADL. The davunetide and placebo groups did not differ in the change from baseline in PSPRS (median 11·8 [95% CI 10·5 to 13·0] vs 11·8 [10·5 to 13·0], respectively, p=0·41) or SEADL (-0·20 [-0·20 to -0·17] vs -0·20 [-0·22 to -0·17], respectively, p=0·92). 54 serious adverse events were reported in each of the treatment groups, including 11 deaths in the davunetide group and ten in the placebo group. The frequency of nasal adverse events was greater in the davunetide group than in the placebo group (epistaxis 18 [12%] of 156 vs 13 [8%] of 156, rhinorrhoea 15 [10%] vs eight [5%], and nasal discomfort 15 [10%] vs one [

Published
2014

31. Vascular burden and Alzheimer disease pathologic progression

Author

Lo, Raymond Y, Jagust, William J, Weiner, Michael, Aisen, Paul, Petersen, Ronald, Jack, Clifford R, Jagust, William, Trojanowki, John Q, Toga, Arthur W, Beckett, Laurel, Green, Robert C, Saykin, Andrew J, Morris, John, Liu, Enchi, Montine, Tom, Gamst, Anthony, Thomas, Ronald G, Donohue, Michael, Walter, Sarah, Gessert, Devon, Sather, Tamie, Harvey, Danielle, Kornak, John, Dale, Anders, Bernstein, Matthew, Felmlee, Joel, Fox, Nick, Thompson, Paul, Schuff, Norbert, Alexander, Gene, DeCarli, Charles, Bandy, Dan, Koeppe, Robert A, Foster, Norm, Reiman, Eric M, Chen, Kewei, Mathis, Chet, Cairns, Nigel J, Taylor-Reinwald, Lisa, Trojanowki, JQ, Shaw, Les, Lee, Virginia MY, Korecka, Magdalena, Crawford, Karen, Neu, Scott, Foroud, Tatiana M, Potkin, Steven, Shen, Li, Kachaturian, Zaven, Frank, Richard, Snyder, Peter J, Molchan, Susan, Kaye, Jeffrey, Quinn, Joseph, Lind, Betty, Dolen, Sara, Schneider, Lon S, Pawluczyk, Sonia, Spann, Bryan M, Brewer, James, Vanderswag, Helen, Heidebrink, Judith L, Lord, Joanne L, Johnson, Kris, Doody, Rachelle S, Villanueva-Meyer, Javier, Chowdhury, Munir, Stern, Yaakov, Honig, Lawrence S, Bell, Karen L, Morris, John C, Ances, Beau, Carroll, Maria, Leon, Sue, Mintun, Mark A, Schneider, Stacy, Marson, Daniel, Griffith, Randall, Clark, David, Grossman, Hillel, Mitsis, Effie, Romirowsky, Aliza, deToledo-Morrell, Leyla, Shah, Raj C, Duara, Ranjan, and Varon, Daniel

Subjects
Biomedical and Clinical Sciences, Clinical Sciences, Aging, Biomedical Imaging, Dementia, Brain Disorders, Clinical Research, Vascular Cognitive Impairment/Dementia, Alzheimer's Disease, Neurosciences, Neurodegenerative, Alzheimer's Disease including Alzheimer's Disease Related Dementias (AD/ADRD), Acquired Cognitive Impairment, 4.1 Discovery and preclinical testing of markers and technologies, Detection, screening and diagnosis, Neurological, Cardiovascular, Aged, Alzheimer Disease, Atrophy, Brain, Cognitive Dysfunction, Disease Progression, Female, Genotype, Humans, Leukoencephalopathies, Longitudinal Studies, Magnetic Resonance Imaging, Male, Positron-Emission Tomography, Alzheimer's Disease Neuroimaging Initiative, Cognitive Sciences, Neurology & Neurosurgery, Clinical sciences
Abstract

ObjectiveTo investigate the vascular contribution to longitudinal changes in Alzheimer disease (AD) biomarkers.MethodsThe Alzheimer's Disease Neuroimaging Initiative is a clinic based, longitudinal study with CSF, PET, and MRI biomarkers repeatedly measured in participants with normal cognition (NC), mild cognitive impairment (MCI), and mild AD. Participants with severe cerebrovascular risks were excluded. Cardiovascular risk scores and MRI white matter hyperintensities (WMHs) were treated as surrogate markers for vascular burden. Generalized estimating equations were applied, and both vascular burden and its interaction with time (vascular burden × time) or time-varying WMHs were entered into regression models to assess whether biomarker rates of change were modified by vascular burden.ResultsCardiovascular risk profiles were not predictive of progression in CSF β₄₂-amyloid, [¹⁸F]fluorodeoxyglucose (FDG) PET uptake, and MRI hippocampal atrophy. Greater baseline cardiovascular risks or WMHs were generally associated with cognitive impairment, particularly poor executive function. WMHs increased over time with a faster rate in MCI and AD than in NC. Increased time-varying WMH was associated with faster decline in executive function and lower FDG uptake in NC. Otherwise, WMH was not associated with CSF and MRI biomarkers in the 3 groups. These findings remained unchanged after accounting for APOE4.ConclusionIncreased WMHs are associated with aging, decreased glucose metabolism, and decline in executive function but do not affect AD-specific pathologic progression, suggesting that the vascular contribution to dementia is probably additive although not necessarily independent of the amyloid pathway.

Published
2012

32. Predicting missing biomarker data in a longitudinal study of Alzheimer disease

Author

Lo, Raymond Y., Jagust, William J., Aisen, Paul, Jack, Clifford R., Toga, Arthur W., Beckett, Laurel, Gamst, Anthony, Soares, Holly, C. Green, Robert, Montine, Tom, Thomas, Ronald G., Donohue, Michael, Walter, Sarah, Dale, Anders, Bernstein, Matthew, Felmlee, Joel, Fox, Nick, Thompson, Paul, Schuff, Norbert, Alexander, Gene, DeCarli, Charles, Bandy, Dan, Chen, Kewei, Morris, John, Lee, Virginia M.-Y., Korecka, Magdalena, Crawford, Karen, Neu, Scott, Harvey, Danielle, Kornak, John, Saykin, Andrew J., Foroud, Tatiana M., Potkin, Steven, Shen, Li, Buckholtz, Neil, Kaye, Jeffrey, Dolen, Sara, Quinn, Joseph, Schneider, Lon, Pawluczyk, Sonia, Spann, Bryan M., Brewer, James, Vanderswag, Helen, Heidebrink, Judith L., Lord, Joanne L., Petersen, Ronald, Johnson, Kris, Doody, Rachelle S., Villanueva-Meyer, Javier, Chowdhury, Munir, Stern, Yaakov, Honig, Lawrence S., Bell, Karen L., Morris, John C., Mintun, Mark A., Schneider, Stacy, Marson, Daniel, Griffith, Randall, Clark, David, Grossman, Hillel, Tang, Cheuk, Marzloff, George, Toledo-Morrell, Leylade, Shah, Raj C., Duara, Ranjan, Varon, Daniel, Roberts, Peggy, Albert, Marilyn S., Pedroso, Julia, Toroney, Jaimie, Rusinek, Henry, de Leon, Mony J, De Santi, Susan M, Doraiswamy, P. Murali, Petrella, Jeffrey R., Aiello, Marilyn, Clark, Christopher M., Pham, Cassie, Nunez, Jessica, Smith, Charles D., Given, Curtis A., Hardy, Peter, Lopez, Oscar L., Oakley, MaryAnn, Simpson, Donna M., Ismail, M. Saleem, Brand, Connie, Richard, Jennifer, Mulnard, Ruth A., Thai, Gaby, Mc-Adams-Ortiz, Catherine, Diaz-Arrastia, Ramon, Martin-Cook, Kristen, DeVous, Michael, Levey, Allan I., Lah, James J., Cellar, Janet S., Burns, Jeffrey M., Anderson, Heather S., and Laubinger, Mary M.

Abstract

Objective:To investigate predictors of missing data in a longitudinal study of Alzheimer disease (AD).Methods:The Alzheimer's Disease Neuroimaging Initiative (ADNI) is a clinic-based, multicenter, longitudinal study with blood, CSF, PET, and MRI scans repeatedly measured in 229 participants with normal cognition (NC), 397 with mild cognitive impairment (MCI), and 193 with mild AD during 2005–2007. We used univariate and multivariable logistic regression models to examine the associations between baseline demographic/clinical features and loss of biomarker follow-ups in ADNI.Results:CSF studies tended to recruit and retain patients with MCI with more AD-like features, including lower levels of baseline CSF Aβ42. Depression was the major predictor for MCI dropouts, while family history of AD kept more patients with AD enrolled in PET and MRI studies. Poor cognitive performance was associated with loss of follow-up in most biomarker studies, even among NC participants. The presence of vascular risk factors seemed more critical than cognitive function for predicting dropouts in AD.Conclusion:The missing data are not missing completely at random in ADNI and likely conditional on certain features in addition to cognitive function. Missing data predictors vary across biomarkers and even MCI and AD groups do not share the same missing data pattern. Understanding the missing data structure may help in the design of future longitudinal studies and clinical trials in AD.

Published
2012

33. Association of common genetic variants in GPCPD1 with scaling of visual cortical surface area in humans.

Author

Bakken, Trygve E, Roddey, J Cooper, Djurovic, Srdjan, Akshoomoff, Natacha, Amaral, David G, Bloss, Cinnamon S, Casey, B J, Chang, Linda, Ernst, Thomas M, Gruen, Jeffrey R, Jernigan, Terry L, Kaufmann, Walter E, Kenet, Tal, Kennedy, David N, Kuperman, Joshua M, Murray, Sarah S, Sowell, Elizabeth R, Rimol, Lars M, Mattingsdal, Morten, Melle, Ingrid, Agartz, Ingrid, Andreassen, Ole A, Schork, Nicholas J, Dale, Anders M, Weiner, Michael, Aisen, Paul, Petersen, Ronald, Jack, Clifford R, Jr, Jagust, William, Trojanowki, John Q, Toga, Arthur W, Beckett, Laurel, Green, Robert C, Saykin, Andrew J, Morris, John, Liu, Enchi, Montine, Tom, Gamst, Anthony, Thomas, Ronald G, Donohue, Michael, Walter, Sarah, Gessert, Devon, Sather, Tamie, Harvey, Danielle, Kornak, John, Dale, Anders, Bernstein, Matthew, Felmlee, Joel, Fox, Nick, Thompson, Paul, Schuff, Norbert, Alexander, Gene, DeCarli, Charles, Bandy, Dan, Koeppe, Robert A, Foster, Norm, Reiman, Eric M, Chen, Kewei, Mathis, Chet, Cairns, Nigel J, Taylor-Reinwald, Lisa, Trojanowki, J Q, Shaw, Les, Lee, Virginia M Y, Korecka, Magdalena, Crawford, Karen, Neu, Scott, Foroud, Tatiana M, Potkin, Steven, Shen, Li, Kachaturian, Zaven, Frank, Richard, Snyder, Peter J, Molchan, Susan, Kaye, Jeffrey, Quinn, Joseph, Lind, Betty, Dolen, Sara, Schneider, Lon S, Pawluczyk, Sonia, Spann, Bryan M, Brewer, James, Vanderswag, Helen, Heidebrink, Judith L, Lord, Joanne L, Johnson, Kris, Doody, Rachelle S, Villanueva-Meyer, Javier, Chowdhury, Munir, Stern, Yaakov, Honig, Lawrence S, Bell, Karen L, Morris, John C, Ances, Beau, Carroll, Maria, Leon, Sue, Mintun, Mark A, Schneider, Stacy, Marson, Daniel, and Griffith, Randall

Subjects
Adolescent, Adult, Aged, Brain: pathology, Brain Mapping: methods, Cohort Studies, Diagnostic Imaging: methods, Female, Genetic Variation, Genome-Wide Association Study, Genomics, Genotype, Humans, Male, Middle Aged, Models, Genetic, Phosphoric Diester Hydrolases: genetics, Polymorphism, Single Nucleotide, Saccharomyces cerevisiae: metabolism, Visual Cortex: anatomy & histology, pathology
Abstract

Visual cortical surface area varies two- to threefold between human individuals, is highly heritable, and has been correlated with visual acuity and visual perception. However, it is still largely unknown what specific genetic and environmental factors contribute to normal variation in the area of visual cortex. To identify SNPs associated with the proportional surface area of visual cortex, we performed a genome-wide association study followed by replication in two independent cohorts. We identified one SNP (rs6116869) that replicated in both cohorts and had genome-wide significant association (P(combined) = 3.2 × 10(-8)). Furthermore, a metaanalysis of imputed SNPs in this genomic region identified a more significantly associated SNP (rs238295; P = 6.5 × 10(-9)) that was in strong linkage disequilibrium with rs6116869. These SNPs are located within 4 kb of the 5' UTR of GPCPD1, glycerophosphocholine phosphodiesterase GDE1 homolog (Saccharomyces cerevisiae), which in humans, is more highly expressed in occipital cortex compared with the remainder of cortex than 99.9% of genes genome-wide. Based on these findings, we conclude that this common genetic variation contributes to the proportional area of human visual cortex. We suggest that identifying genes that contribute to normal cortical architecture provides a first step to understanding genetic mechanisms that underlie visual perception.

Published
2012

34. A roadmap for the prevention of dementia: the inaugural Leon Thal Symposium.

Author

Khachaturian, Zaven S, Petersen, Ronald C, Gauthier, Serge, Buckholtz, Neil, Corey-Bloom, Jodey P, Evans, Bill, Fillit, Howard, Foster, Norman, Greenberg, Barry, Grundman, Michael, Sano, Mary, Simpkins, James, Schneider, Lon S, Weiner, Michael W, Galasko, Doug, Hyman, Bradley, Kuller, Lew, Schenk, Dale, Snyder, Stephen, Thomas, Ronald G, Tuszynski, Mark H, Vellas, Bruno, Wurtman, Richard J, Snyder, Peter J, Frank, Richard A, Albert, Marilyn, Doody, Rachelle, Ferris, Steven, Kaye, Jeffrey, Koo, Edward, Morrison-Bogorad, Marcelle, Reisberg, Barry, Salmon, David P, Gilman, Sid, Mohs, Richard, Aisen, Paul S, Breitner, John CS, Cummings, Jeffrey L, Kawas, Claudia, Phelps, Creighton, Poirier, Judes, Sabbagh, Marwan, Touchon, Jacques, Khachaturian, Ara S, and Bain, Lisa J

Subjects
Humans, Dementia, Drug Design, Clinical Trials as Topic, Geriatrics, Neurosciences, Clinical Sciences
Published
2008

36. Prognostic relevance of gait-related cognitive functions for dementia conversion in amnestic mild cognitive impairment

Author

Tuena, Cosimo, Maestri, Sara, Serino, Silvia, Pedroli, Elisa, Stramba-Badiale, Marco, Riva, Giuseppe, Silbert, Lisa C., Lind, Betty, Crissey, Rachel, Kaye, Jeffrey A., Carter, Raina, Dolen, Sara, Quinn, Joseph, Schneider, Lon S., Pawluczyk, Sonia, Becerra, Mauricio, Teodoro, Liberty, Dagerman, Karen, Spann, Bryan M., Brewer, Jame, Fleisher, Adam, Vanderswag, Helen, Ziolkowski, Jaimie, Heidebrink, Judith L., Zbizek-Nulph, Lisa, Lord, Joanne L., Albers, Colleen S., Petersen, Ronald, Mason, Sara S., Knopman, David, Johnson, Kri, Villanueva-Meyer, Javier, Pavlik, Valory, Pacini, Nathaniel, Lamb, Ashley, Kass, Joseph S., Doody, Rachelle S., Shibley, Victoria, Chowdhury, Munir, Rountree, Susan, Dang, Mimi, Stern, Yaakov, Honig, Lawrence S., Mintz, Akiva, Ances, Beau, Morris, John C., Winkfield, David, Carroll, Maria, Stobbs-Cucchi, Georgia, Oliver, Angela, Creech, Mary L., Mintun, Mark A., Schneider, Stacy, Geldmacher, David, Love, Marissa Natelson, Griffith, Randall, Clark, David, Brockington, John, Marson, Daniel, Grossman, Hillel, Goldstein, Martin A., Greenberg, Jonathan, Mitsis, Effie, Shah, Raj C., Lamar, Melissa, Samuels, Patricia, Duara, Ranjan, Greig-Custo, Maria T., Rodriguez, Rosemarie, Albert, Marilyn, Onyike, Chiadi, Farrington, Leonie, Rudow, Scott, Brichko, Rottislav, Kielb, Stephanie, Smith, Amanda, Raj, Balebail Ashok, Fargher, Kristin, Sadowski, Martin, Wisniewski, Thoma, Shulman, Melanie, Faustin, Arline, Rao, Julia, Castro, Karen M., Ulysse, Anaztasia, Chen, Shannon, Doraiswamy, P. Murali, Petrella, Jeffrey R., James, Olga, Wong, Terence Z., Borges-Neto, Salvador, Karlawish, Jason H., Wolk, David A., Vaishnavi, Sanjeev, Clark, Christopher M., Arnold, Steven E., Smith, Charles D., Jicha, Gregory A., Khouli, Riham El, Raslau, Flavius D., Lopez, Oscar L., Oakley, Maryann, Simpson, Donna M., Porsteinsson, Anton P., Martin, Kim, Kowalski, Nancy, Keltz, Melanie, Goldstein, Bonnie S., Makino, Kelly M., Ismail, M. Saleem, Brand, Connie, Thai, Gaby, Pierce, Aimee, Yanez, Beatriz, Sosa, Elizabeth, Witbracht, Megan, Kelley, Brendan, Nguyen, Trung, Womack, Kyle, Mathews, Dana, Quiceno, Mary, Levey, Allan I., Lah, James J., Hajjar, Ihab, Burns, Jeffrey M., Swerdlow, Russell H., Brooks, William M., Silverman, Daniel H. S., Kremen, Sarah, Apostolova, Liana, Tingus, Kathleen, Lu, Po H., Bartzokis, George, Woo, Ellen, Teng, Edmond, Graff-Radford, Neill R., Parfitt, Francine, Poki-Walker, Kim, Farlow, Martin R., Hake, Ann Marie, Matthews, Brandy R., Brosch, Jared R., Herring, Scott, van Dyck, Christopher H., Mecca, Adam P., Good, Susan P., Macavoy, Martha G., Carson, Richard E., Varma, Pradeep, Chertkow, Howard, Vaitekunas, Susan, Hosein, Chri, Black, Sandra, Stefanovic, Bojana, Heyn, Chri, Hsiung, Ging-Yuek Robin, Kim, Ellen, Mudge, Benita, Sossi, Vesna, Feldman, Howard, Assaly, Michele, Finger, Elizabeth, Pasternak, Stephen, Rachinsky, Irina, Kertesz, Andrew, Drost, Dick, Rogers, John, Grant, Ian, Muse, Brittanie, Rogalski, Emily, Robson, Jordan, Mesulam, M. -Marsel, Kerwin, Diana, Wu, Chuang-Kuo, Johnson, Nancy, Lipowski, Kristine, Weintraub, Sandra, Bonakdarpour, Borna, Pomara, Nunzio, Hernando, Raymundo, Sarrael, Antero, Rosen, Howard J., Miller, Bruce L., Weiner, Micheal W., Perry, David, Turner, Raymond Scott, Johnson, Kathleen, Reynolds, Brigid, Mccann, Kelly, Poe, Jessica, Marshall, Gad A., Sperling, Reisa A., Johnson, Keith A., Yesavage, Jerome, Taylor, Joy L., Chao, Steven, Coleman, Jaila, White, Jessica D., Lane, Barton, Rosen, Allyson, Tinklenberg, Jared, Belden, Christine M., Atri, Alireza, Clark, Kelly A., Zamrini, Edward, Sabbagh, Marwan, Killiany, Ronald, Stern, Robert, Mez, Jesse, Kowall, Neil, Budson, Andrew E., Obisesan, Thomas O., Ntekim, Oyonumo E., Wolday, Saba, Khan, Javed I., Nwulia, Evaristu, Nadarajah, Sheeba, Lerner, Alan, Ogrocki, Paula, Tatsuoka, Curti, Fatica, Parianne, Fletcher, Evan, Maillard, Pauline, Olichney, John, Decarli, Charle, Carmichael, Owen, Bates, Vernice, Capote, Horacio, Rainka, Michelle, Borrie, Michael, Lee, T. -Y., Bartha, Rob, Johnson, Sterling, Asthana, Sanjay, Carlsson, Cynthia M., Perrin, Allison, Burke, Anna, Scharre, Douglas W., Kataki, Maria, Tarawneh, Rawan, Hart, David, Zimmerman, Earl A., Celmins, Dzintra, Miller, Delwyn D., Ponto, Laura L. Bole, Smith, Karen Ekstam, Koleva, Hristina, Shim, Hyungsub, Nam, Ki Won, Schultz, Susan K., Williamson, Jeff D., Craft, Suzanne, Cleveland, Jo, Yang, Mia, Sink, Kaycee M., Ott, Brian R., Drake, Jonathan, Tremont, Geoffrey, Daiello, Lori A., Drake, Jonathan D., Ritter, Aaron, Bernick, Charle, Munic, Donna, O’Connelll, Abigail, Mintzer, Jacobo, Wiliams, Arthur, Masdeu, Joseph, Shi, Jiong, Garcia, Angelica, Newhouse, Paul, Potkin, Steven, Salloway, Stephen, Malloy, Paul, Correia, Stephen, Kittur, Smita, Pearlson, Godfrey D., Blank, Karen, Anderson, Karen, Flashman, Laura A., Seltzer, Marc, Hynes, Mary L., Santulli, Robert B., Relkin, Norman, Chiang, Gloria, Lee, Athena, Lin, Michael, Ravdin, Lisa, Null, Null, Serino, Silvia (ORCID:0000-0002-8422-1358), Riva, Giuseppe (ORCID:0000-0003-3657-106X), Tuena, Cosimo, Maestri, Sara, Serino, Silvia, Pedroli, Elisa, Stramba-Badiale, Marco, Riva, Giuseppe, Silbert, Lisa C., Lind, Betty, Crissey, Rachel, Kaye, Jeffrey A., Carter, Raina, Dolen, Sara, Quinn, Joseph, Schneider, Lon S., Pawluczyk, Sonia, Becerra, Mauricio, Teodoro, Liberty, Dagerman, Karen, Spann, Bryan M., Brewer, Jame, Fleisher, Adam, Vanderswag, Helen, Ziolkowski, Jaimie, Heidebrink, Judith L., Zbizek-Nulph, Lisa, Lord, Joanne L., Albers, Colleen S., Petersen, Ronald, Mason, Sara S., Knopman, David, Johnson, Kri, Villanueva-Meyer, Javier, Pavlik, Valory, Pacini, Nathaniel, Lamb, Ashley, Kass, Joseph S., Doody, Rachelle S., Shibley, Victoria, Chowdhury, Munir, Rountree, Susan, Dang, Mimi, Stern, Yaakov, Honig, Lawrence S., Mintz, Akiva, Ances, Beau, Morris, John C., Winkfield, David, Carroll, Maria, Stobbs-Cucchi, Georgia, Oliver, Angela, Creech, Mary L., Mintun, Mark A., Schneider, Stacy, Geldmacher, David, Love, Marissa Natelson, Griffith, Randall, Clark, David, Brockington, John, Marson, Daniel, Grossman, Hillel, Goldstein, Martin A., Greenberg, Jonathan, Mitsis, Effie, Shah, Raj C., Lamar, Melissa, Samuels, Patricia, Duara, Ranjan, Greig-Custo, Maria T., Rodriguez, Rosemarie, Albert, Marilyn, Onyike, Chiadi, Farrington, Leonie, Rudow, Scott, Brichko, Rottislav, Kielb, Stephanie, Smith, Amanda, Raj, Balebail Ashok, Fargher, Kristin, Sadowski, Martin, Wisniewski, Thoma, Shulman, Melanie, Faustin, Arline, Rao, Julia, Castro, Karen M., Ulysse, Anaztasia, Chen, Shannon, Doraiswamy, P. Murali, Petrella, Jeffrey R., James, Olga, Wong, Terence Z., Borges-Neto, Salvador, Karlawish, Jason H., Wolk, David A., Vaishnavi, Sanjeev, Clark, Christopher M., Arnold, Steven E., Smith, Charles D., Jicha, Gregory A., Khouli, Riham El, Raslau, Flavius D., Lopez, Oscar L., Oakley, Maryann, Simpson, Donna M., Porsteinsson, Anton P., Martin, Kim, Kowalski, Nancy, Keltz, Melanie, Goldstein, Bonnie S., Makino, Kelly M., Ismail, M. Saleem, Brand, Connie, Thai, Gaby, Pierce, Aimee, Yanez, Beatriz, Sosa, Elizabeth, Witbracht, Megan, Kelley, Brendan, Nguyen, Trung, Womack, Kyle, Mathews, Dana, Quiceno, Mary, Levey, Allan I., Lah, James J., Hajjar, Ihab, Burns, Jeffrey M., Swerdlow, Russell H., Brooks, William M., Silverman, Daniel H. S., Kremen, Sarah, Apostolova, Liana, Tingus, Kathleen, Lu, Po H., Bartzokis, George, Woo, Ellen, Teng, Edmond, Graff-Radford, Neill R., Parfitt, Francine, Poki-Walker, Kim, Farlow, Martin R., Hake, Ann Marie, Matthews, Brandy R., Brosch, Jared R., Herring, Scott, van Dyck, Christopher H., Mecca, Adam P., Good, Susan P., Macavoy, Martha G., Carson, Richard E., Varma, Pradeep, Chertkow, Howard, Vaitekunas, Susan, Hosein, Chri, Black, Sandra, Stefanovic, Bojana, Heyn, Chri, Hsiung, Ging-Yuek Robin, Kim, Ellen, Mudge, Benita, Sossi, Vesna, Feldman, Howard, Assaly, Michele, Finger, Elizabeth, Pasternak, Stephen, Rachinsky, Irina, Kertesz, Andrew, Drost, Dick, Rogers, John, Grant, Ian, Muse, Brittanie, Rogalski, Emily, Robson, Jordan, Mesulam, M. -Marsel, Kerwin, Diana, Wu, Chuang-Kuo, Johnson, Nancy, Lipowski, Kristine, Weintraub, Sandra, Bonakdarpour, Borna, Pomara, Nunzio, Hernando, Raymundo, Sarrael, Antero, Rosen, Howard J., Miller, Bruce L., Weiner, Micheal W., Perry, David, Turner, Raymond Scott, Johnson, Kathleen, Reynolds, Brigid, Mccann, Kelly, Poe, Jessica, Marshall, Gad A., Sperling, Reisa A., Johnson, Keith A., Yesavage, Jerome, Taylor, Joy L., Chao, Steven, Coleman, Jaila, White, Jessica D., Lane, Barton, Rosen, Allyson, Tinklenberg, Jared, Belden, Christine M., Atri, Alireza, Clark, Kelly A., Zamrini, Edward, Sabbagh, Marwan, Killiany, Ronald, Stern, Robert, Mez, Jesse, Kowall, Neil, Budson, Andrew E., Obisesan, Thomas O., Ntekim, Oyonumo E., Wolday, Saba, Khan, Javed I., Nwulia, Evaristu, Nadarajah, Sheeba, Lerner, Alan, Ogrocki, Paula, Tatsuoka, Curti, Fatica, Parianne, Fletcher, Evan, Maillard, Pauline, Olichney, John, Decarli, Charle, Carmichael, Owen, Bates, Vernice, Capote, Horacio, Rainka, Michelle, Borrie, Michael, Lee, T. -Y., Bartha, Rob, Johnson, Sterling, Asthana, Sanjay, Carlsson, Cynthia M., Perrin, Allison, Burke, Anna, Scharre, Douglas W., Kataki, Maria, Tarawneh, Rawan, Hart, David, Zimmerman, Earl A., Celmins, Dzintra, Miller, Delwyn D., Ponto, Laura L. Bole, Smith, Karen Ekstam, Koleva, Hristina, Shim, Hyungsub, Nam, Ki Won, Schultz, Susan K., Williamson, Jeff D., Craft, Suzanne, Cleveland, Jo, Yang, Mia, Sink, Kaycee M., Ott, Brian R., Drake, Jonathan, Tremont, Geoffrey, Daiello, Lori A., Drake, Jonathan D., Ritter, Aaron, Bernick, Charle, Munic, Donna, O’Connelll, Abigail, Mintzer, Jacobo, Wiliams, Arthur, Masdeu, Joseph, Shi, Jiong, Garcia, Angelica, Newhouse, Paul, Potkin, Steven, Salloway, Stephen, Malloy, Paul, Correia, Stephen, Kittur, Smita, Pearlson, Godfrey D., Blank, Karen, Anderson, Karen, Flashman, Laura A., Seltzer, Marc, Hynes, Mary L., Santulli, Robert B., Relkin, Norman, Chiang, Gloria, Lee, Athena, Lin, Michael, Ravdin, Lisa, Null, Null, Serino, Silvia (ORCID:0000-0002-8422-1358), and Riva, Giuseppe (ORCID:0000-0003-3657-106X)

Abstract

BackgroundIncreasing research suggests that gait abnormalities can be a risk factor for Alzheimer's Disease (AD). Notably, there is growing evidence highlighting this risk factor in individuals with amnestic Mild Cognitive Impairment (aMCI), however further studies are needed. The aim of this study is to analyze cognitive tests results and brain-related measures over time in aMCI and examine how the presence of gait abnormalities (neurological or orthopedic) or normal gait affects these trends. Additionally, we sought to assess the significance of gait and gait-related measures as prognostic indicators for the progression from aMCI to AD dementia, comparing those who converted to AD with those who remained with a stable aMCI diagnosis during the follow-up.MethodsFour hundred two individuals with aMCI from the Alzheimer's Disease Neuroimaging Initiative (ADNI) database were included. Robust linear mixed-effects models were used to study the impact of gait abnormalities on a comprehensive neuropsychological battery over 36 months while controlling for relevant medical variables at baseline. The impact of gait on brain measures was also investigated. Lastly, the Cox proportional-hazards model was used to explore the prognostic relevance of abnormal gait and neuropsychological associated tests.ResultsWhile controlling for relevant covariates, we found that gait abnormalities led to a greater decline over time in attention (DSST) and global cognition (MMSE). Intriguingly, psychomotor speed (TMT-A) and divided attention (TMT-B) declined uniquely in the abnormal gait group. Conversely, specific AD global cognition tests (ADAS-13) and auditory-verbal memory (RAVLT immediate recall) declined over time independently of gait profile. All the other cognitive tests were not significantly affected by time or by gait profile. In addition, we found that ventricles size increased faster in the abnormal gait group compared to the normal gait group. In terms of prognosis, abnormal gai

Published
2023

37. Estrogen Replacement Therapy for Treatment of Mild to Moderate Alzheimer Disease: A Randomized Controlled Trial

Author

Mulnard, Ruth A, Cotman, Carl W, Kawas, Claudia, van Dyck, Christopher H, Sano, Mary, Doody, Rachelle, Koss, Elizabeth, Pfeiffer, Eric, Jin, Shelia, Gamst, Anthony, Grundman, Michael, Thomas, Ronald, Thal, Leon J, and Study, for the Alzheimer's Disease Cooperative

Subjects
Reproductive Medicine, Biomedical and Clinical Sciences, Alzheimer's Disease including Alzheimer's Disease Related Dementias (AD/ADRD), Neurosciences, Brain Disorders, Acquired Cognitive Impairment, Clinical Research, Dementia, Clinical Trials and Supportive Activities, Prevention, Aging, Neurodegenerative, Alzheimer's Disease, Estrogen, 6.1 Pharmaceuticals, Evaluation of treatments and therapeutic interventions, Neurological, Aged, Alzheimer Disease, Double-Blind Method, Estrogen Replacement Therapy, Estrogens, Conjugated (USP), Female, Humans, Hysterectomy, Linear Models, Mental Status Schedule, Middle Aged, Severity of Illness Index, Treatment Outcome, Medical and Health Sciences, General & Internal Medicine, Biomedical and clinical sciences, Health sciences
Abstract

ContextSeveral reports from small clinical trials have suggested that estrogen replacement therapy may be useful for the treatment of Alzheimer disease (AD) in women.ObjectiveTo determine whether estrogen replacement therapy affects global, cognitive, or functional decline in women with mild to moderate AD.DesignThe Alzheimer's Disease Cooperative Study, a randomized, double-blind, placebo-controlled clinical trial conducted between October 1995 and January 1999.SettingThirty-two study sites in the United States.ParticipantsA total of 120 women with mild to moderate AD and a Mini-Mental State Examination score between 12 and 28 who had had a hysterectomy.InterventionsParticipants were randomized to estrogen, 0.625 mg/d (n = 42), or 1.25 mg/d (n = 39), or to identically appearing placebo (n = 39). One subject withdrew after randomization but before receiving medication; 97 subjects completed the trial.Main outcome measuresThe primary outcome measure was change on the Clinical Global Impression of Change (CGIC) 7-point scale, analyzed by intent to treat; secondary outcome measures included other global measures as well as measures of mood, specific cognitive domains (memory, attention, and language), motor function, and activities of daily living; compared by the combined estrogen groups vs the placebo group at 2, 6, 12, and 15 months of follow-up.ResultsThe CGIC score for estrogen vs placebo was 5.1 vs 5.0 (P = .43); 80% of participants taking estrogen vs 74% of participants taking placebo worsened (P = .48). Secondary outcome measures also showed no significant differences, with the exception of the Clinical Dementia Rating Scale, which suggested worsening among patients taking estrogen (mean posttreatment change in score for estrogen, 0.5 vs 0.2 for placebo; P = .01).ConclusionsEstrogen replacement therapy for 1 year did not slow disease progression nor did it improve global, cognitive, or functional outcomes in women with mild to moderate AD. The study does not support the role of estrogen for the treatment of this disease. The potential role of estrogen in the prevention of AD, however, requires further research.

Published
2000

40. A Double-Blind, Placebo-Controlled Multicenter Study of Tacrine for Alzheimer's Disease

Author

Davis, Kenneth L, Thal, Leon J, Gamzu, Elkan R, Davis, Charles S, Woolson, Robert F, Gracon, Stephen I, Drachman, David A, Schneider, Lon S, Whitehouse, Peter J, Hoover, Toni M, Morris, John C, Kawas, Claudia H, Knopman, David S, Earl, Nancy L, Kumar, Vinod, and Doody, Rachelle S

Subjects
Aging, Alzheimer's Disease, Clinical Trials and Supportive Activities, Neurodegenerative, Acquired Cognitive Impairment, Clinical Research, Alzheimer's Disease including Alzheimer's Disease Related Dementias (AD/ADRD), Behavioral and Social Science, Dementia, Brain Disorders, Neurosciences, Mental Health, 6.1 Pharmaceuticals, Evaluation of treatments and therapeutic interventions, Neurological, Good Health and Well Being, Activities of Daily Living, Alzheimer Disease, Double-Blind Method, Humans, Middle Aged, Psychological Tests, Tacrine, Medical and Health Sciences, General & Internal Medicine
Abstract

BackgroundIn Alzheimer's disease, there is a marked decline in the function of cholinergic neurons in the brain. However, studies of treatment with cholinesterase inhibitors have produced conflicting results. We conducted a multicenter trial to evaluate whether the cholinesterase inhibitor tacrine (1,2,3,4-tetrahydro-9-acridinamine monohydrochloride monohydrate) could improve cognition in patients with Alzheimer's disease.MethodsOf 632 eligible patients with probable Alzheimer's disease, 215 improved while receiving tacrine during a preliminary crossover phase to determine responsiveness and the best dose. The 215 patients were randomly assigned to receive either placebo or their best dose of tacrine (10 or 20 mg four times a day) in a six-week, double-blind trial. The primary measures of efficacy were the cognitive subscale of the Alzheimer's Disease Assessment Scale and the Clinical Global Impression of Change scale; the secondary measures included the Mini-Mental State Examination and the assessment of the activities of daily living.ResultsAt the end of the six-week trial, the patients receiving tacrine had a mean adjusted cognitive-subscale score of 30.3 (Alzheimer's Disease Assessment Scale) as compared with 32.7 in patients receiving placebo. This represents a smaller decline (by 2.4 points) in cognitive performance in the tacrine group (P < 0.001). There were no differences between the groups in their global-rating scores. The tacrine group had a significantly smaller decline in the activities of daily living. The results of the Mini-Mental State Examination favored tacrine, but the differences were small and not statistically significant (a score of 16.0 with tacrine vs. 15.3 with placebo; P = 0.08). Gastrointestinal symptoms, elevation of aminotransferase levels, and headache were the most frequent side effects; all could be reversed by reducing the dose or discontinuing treatment.ConclusionsIn this short-term study in patients with Alzheimer's disease who were selected for apparent responsiveness to tacrine, treatment with tacrine resulted in a statistically significant reduction in the decline of cognitive function, although this reduction was not large enough to be detected by the study physicians' global assessments of the patients.

Published
1992

41. 18F-florbetapir Positron Emission Tomography–determined Cerebral β-Amyloid Deposition and Neurocognitive Performance after Cardiac Surgery

Author

Klinger, Rebecca Y., James, Olga G., Borges-Neto, Salvador, Bisanar, Tiffany, Li, Yi-Ju, Qi, Wenjing, Berger, Miles, Terrando, Niccolò, Newman, Mark F., Doraiswamy, P. Murali, Mathew, Joseph P., Weiner, Michael W., Aisen, Paul, Weiner, Michael, Aisen, Paul, Petersen, Ronald, Jack, Clifford R., Jr., Jagust, William, Trojanowki, John Q., Toga, Arthur W., Beckett, Laurel, Green, Robert C., Saykin, Andrew J., Morris, John, Shaw, Leslie M., Khachaturian, Zaven, Sorensen, Greg, Carrillo, Maria, Kuller, Lew, Raichle, Marc, Paul, Steven, Davies, Peter, Fillit, Howard, Hefti, Franz, Holtzman, David, Mesulam, M. Marcel, Potter, William, Snyder, Peter, Schwartz, Adam, Green, Robert C., Montine, Tom, Petersen, Ronald, Aisen, Paul, Thomas, Ronald G., Donohue, Michael, Walter, Sarah, Gessert, Devon, Sather, Tamie, Jiminez, Gus, Balasubramanian, Archana B., Mason, Jennifer, Sim, Iris, Beckett, Laurel, Harvey, Danielle, Donohue, Michael, Jack, Clifford R., Jr., Bernstein, Matthew, Fox, Nick, Thompson, Paul, Schuff, Norbert, DeCArli, Charles, Borowski, Bret, Gunter, Jeff, Senjem, Matt, Vemuri, Prashanthi, Jones, David, Kantarci, Kejal, Ward, Chad, Jagust, William, Koeppe, Robert A., Foster, Norm, Reiman, Eric M., Chen, Kewei, Mathis, Chet, Landau, Susan, Morris, John C., Cairns, Louis Nigel J., Franklin, Erin, Taylor-Reinwald, Lisa, Shaw, Leslie M., Trojanowki, John Q., Lee, Virginia, Korecka, Magdalena, Figurski, Michal, Toga, Arthur W., Crawford, Karen, Neu, Scott, Saykin, Andrew J., Foroud, Tatiana M., Potkin, Steven, Shen, Li, Faber, Kelley, Kim, Sungeun, Nho, Kwangsik, Weiner, Michael W., Thal, Lean, Khachaturian, Zaven, Thal, Leon, Buckholtz, Neil, Weiner, Michael W., Snyder, Peter J., Potter, William, Paul, Steven, Albert, Marilyn, Frank, Richard, Khachaturian, Zaven, Hsiao, John, Kaye, Jeffrey, Quinn, Joseph, Silbert, Lisa, Lind, Betty, Carter, Raina, Dolen, Sara, Schneider, Lon S., Pawluczyk, Sonia, Becerra, Mauricio, Teodoro, Liberty, Spann, Bryan M., Brewer, James, Vanderswag, Helen, Fleisher, Adam, Heidebrink, Judith L., Lord, Joanne L., Petersen, Ronald, Mason, Sara S., Albers, Colleen S., Knopman, David, Johnson, Kris, Doody, Rachelle S., Villanueva-Meyer, Javier, Pavlik, Valory, Shibley, Victoria, Chowdhury, Munir, Rountree, Susan, Dang, Mimi, Stern, Yaakov, Honig, Lawrence S., Bell, Karen L., Ances, Beau, Morris, John C., Carroll, Maria, Creech, Mary L., Franklin, Erin, Mintun, Mark A., Schneider, Stacy, Oliver, Angela, Marson, Daniel, Geldmacher, David, Love, Marissa Natelson, Griffith, Randall, Clark, David, Brockington, John, Roberson, Erik, Grossman, Hillel, Mitsis, Effie, Shah, Raj C., deToledo-Morrell, Leyla, Duara, Ranjan, Greig-Custo, Maria T., Barker, Warren, Albert, Marilyn, Onyike, Chiadi, D’Agostino, Daniel, II, Kielb, Stephanie, Sadowski, Martin, Sheikh, Mohammed O., Ulysse, Anaztasia, Gaikwad, Mrunalini, Petrella, Jeffrey R., Wong, Terence Z., Coleman, Edward, Arnold, Steven E., Karlawish, Jason H., Wolk, David A., Clark, Christopher M., Smith, Charles D., Jicha, Greg, Hardy, Peter, Sinha, Partha, Oates, Elizabeth, Conrad, Gary, Lopez, Oscar L., Oakley, MaryAnn, Simpson, Donna M., Porsteinsson, Anton P., Goldstein, Bonnie S., Martin, Kim, Makino, Kelly M., Ismail, M. Saleem, Brand, Connie, Potkin, Steven G., Preda, Adrian, Nguyen, Dana, Womack, Kyle, Mathews, Dana, Quiceno, Mary, Levey, Allan I., Lah, James J., Cellar, Janet S., Burns, Jeffrey M., Swerdlow, Russell H., Brooks, William M., Apostolova, Liana, Tingus, Kathleen, Woo, Ellen, Silverman, Daniel H.S., Lu, Po H., Bartzokis, George, Graff-Radford, Neill R, Parfitt, Francine, Poki-Walker, Kim, Farlow, Martin R., Hake, Ann Marie, Matthews, Brandy R., Brosch, Jared R., Herring, Scott, van Dyck, Christopher H., Carson, Richard E., MacAvoy, Martha G., Varma, Pradeep, Chertkow, Howard, Bergman, Howard, Hosein, Chris, Black, Sandra, Stefanovic, Bojana, Caldwell, Curtis, Ging-Yuek, Hsiung, Robin, Mudge, Benita, Sossi, Vesna, Feldman, Howard, Assaly, Michele, Finger, Elizabeth, Pasternack, Stephen, Rachisky, Irina, Trost, Dick, Kertesz, Andrew, Bernick, Charles, Munic, Donna, Mesulam, Marek-Marsel, Rogalski, Emily, Lipowski, Kristine, Weintraub, Sandra, Bonakdarpour, Borna, Kerwin, Diana, Wu, Chuang-Kuo, Johnson, Nancy, Sadowsky, Carl, Villena, Teresa, Turner, Raymond Scott, Johnson, Kathleen, Reynolds, Brigid, Sperling, Reisa A., Johnson, Keith A., Marshall, Gad, Yesavage, Jerome, Taylor, Joy L., Lane, Barton, Rosen, Allyson, Tinklenberg, Jared, Sabbagh, Marwan N., Belden, Christine M., Jacobson, Sandra A., Sirrel, Sherye A., Kowall, Neil, Killiany, Ronald, Budson, Andrew E., Norbash, Alexander, Johnson, Patricia Lynn, Obisesan, Thomas O., Wolday, Saba, Allard, Joanne, Lerner, Alan, Ogrocki, Paula, Tatsuoka, Curtis, Fatica, Parianne, Fletcher, Evan, Maillard, Pauline, Olichney, John, DeCarli, Charles, Carmichael, Owen, Kittur, Smita, Borrie, Michael, Lee, T-Y, Bartha, Dr Rob, Johnson, Sterling, Asthana, Sanjay, Carlsson, Cynthia M., Potkin, Steven G., Preda, Adrian, Nguyen, Dana, Tariot, Pierre, Burke, Anna, Milliken, Ann Marie, Trncic, Nadira, Fleisher, Adam, Reeder, Stephanie, Bates, Vernice, Capote, Horacio, Rainka, Michelle, Scharre, Douglas W., Kataki, Maria, Kelley, Brendan, Zimmerman, Earl A., Celmins, Dzintra, Brown, Alice D., Pearlson, Godfrey D., Blank, Karen, Anderson, Karen, Flashman, Laura A., Seltzer, Marc, Hynes, Mary L., Santulli, Robert B., Sink, Kaycee M., Gordineer, Leslie, Williamson, Jeff D., Garg, Pradeep, Watkins, Franklin, Ott, Brian R., Tremont, Geoffrey, Daiello, Lori A., Salloway, Stephen, Malloy, Paul, Correia, Stephen, Rosen, Howard J., Miller, Bruce L., Perry, David, Mintzer, Jacobo, Spicer, Kenneth, Bachman, David, Finger, Elizabeth, Pasternak, Stephen, Rachinsky, Irina, Rogers, John, Kertesz, Andrew, Drost, Dick, Pomara, Nunzio, Hernando, Raymundo, Sarrael, Antero, Schultz, Susan K., Smith, Karen Ekstam, Koleva, Hristina, Nam, Ki Won, Shim, Hyungsub, Relkin, Norman, Chiang, Gloria, Lin, Michael, Ravdin, Lisa, Smith, Amanda, Ashok Raj, Balebail, Fargher, Kristin, Weiner, Michael W., Aisen, Paul, Weiner, Michael, Aisen, Paul, Petersen, Ronald, Green, Robert C., Harvey, Danielle, Jack, Clifford R., Jr., Jagust, William, Morris, John C., Saykin, Andrew J., Shaw, Leslie M., Toga, Arthur W., Trojanowki, John Q., Neylan, Thomas, Grafman, Jordan, Grafman, Jordan, Green, Robert C., Montine, Tom, Weiner, Michael, Petersen, Ronald, Aisen, Paul, Thomas, Ronald G., Donohue, Michael, Gessert, Devon, Sather, Tamie, Davis, Melissa, Morrison, Rosemary, Jiminez, Gus, Neylan, Thomas, Hayes, Jacqueline, Finely, Shannon, Harvey, Danielle, Donohue, Michael, Jack, Clifford R., Jr., Bernstein, Matthew, Borowski, Bret, Gunter, Jeff, Senjem, Matt, Kantarci, Kejal, Ward, Chad, Jagust, William, Koeppe, Robert A., Foster, Norm, Reiman, Eric M., Chen, Kewei, Landau, Susan, Morris, John C., Cairns, Nigel J., Householder, Erin, Shaw, Leslie M., Trojanowki, John Q., Lee, Virginia, Korecka, Magdalena, Figurski, Michal, Toga, Arthur W., Crawford, Karen, Neu, Scott, Saykin, Andrew J., Foroud, Tatiana M., Potkin, Steven, Shen, Li, Faber, Kelley, Kim, Sungeun, Nho, Kwangsik, Weiner, Michael W., Friedl, Karl, Schneider, Lon S., Pawluczyk, Sonia, Becerra, Mauricio, Brewer, James, Vanderswag, Helen, Stern, Yaakov, Honig, Lawrence S., Bell, Karen L., Fleischman, Debra, Arfanakis, Konstantinos, Shah, Raj C., Duara, Ranjan, Varon, Daniel, Greig, Maria T, Petrella, Jeffrey R., Porsteinsson, Anton P., Goldstein, Bonnie, Martin, Kimberly S., Potkin, Steven G., Preda, Adrian, Nguyen, Dana, Mintzer, Jacobo, Massoglia, Dino, Brawman-Mintzer, Olga, Sadowsky, Carl, Martinez, Walter, Villena, Teresa, Jagust, William, Landau, Susan, Rosen, Howard, Perry, David, Turner, Raymond Scott, Behan, Kelly, Reynolds, Brigid, Sperling, Reisa A., Johnson, Keith A., Marshall, Gad, Sabbagh, Marwan N., Jacobson, Sandra A., Sirrel, Sherye A., Obisesan, Thomas O., Wolday, Saba, Allard, Joanne, Johnson, Sterling C., Fruehling, J. Jay, Harding, Sandra, Peskind, Elaine R., Petrie, Eric C., Li, Gail, Yesavage, Jerome A., Taylor, Joy L., Furst, Ansgar J., Chao, Steven, Relkin, Norman, Chiang, Gloria, Ravdin, Lisa, Blumenthal, James A., Karhausen, Jorn A., Kertai, Miklos D., Podgoreanu, Mihai V., Stafford-Smith, Mark, Swaminathan, Madhav, Warner, David S., Funk, Bonita L., Balajonda, Narai, Brassard, Rachele, Cooter, Mary, Toulgoat-Dubois, Yanne, Waweru, Peter, Babyak, Michael A., Blumenthal, James A., Browndyke, Jeffrey N., Welsh-Bohmer, Kathleen A., Sketch, Michael H., Jr., Bennett, Ellen R., Graffagnino, Carmelo, Laskowitz, Daniel T., Strittmatter, Warren J., Collins, Kevin, Smigla, Greg, Shearer, Ian, D’Amico, Thomas A., Daneshmand, Mani A., Gaca, R. Jeffrey G., Glower, Donald D., Haney, Jack, Harpole, R. David, Hartwig, Mathew G., Hughes, G. Chad, Klapper, Jacob A., Lin, Shu S., Lodge, Andrew J., Milano, Carmelo A., Plichta, Ryan P., Schroeder, Jacob N., Smith, Peter K., and Tong, Betty C.

Published
2018
Full Text
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42. Glucose metabolism patterns: A potential index to characterize brain ageing and predict high conversion risk into cognitive impairment

Author

Jiang, Jiehui, Sheng, Can, Aisen, Paul, Dang, Mimi, Stern, Yaakov, Honig, Lawrence S, Bell, Karen L, Ances, Beau, Carroll, Maria, Leon, Sue, Mintun, Mark A, Schneider, Stacy, Oliver, Angela, Petersen, Ronald, Marson, Daniel, Griffith, Randall, Clark, David, Geldmacher, David, Brockington, John, Roberson, Erik, Grossman, Hillel, Mitsis, Effie, de Toledo-Morrell, Leyla, Shah, Raj C, Jack, Clifford R, Duara, Ranjan, Varon, Daniel, Greig, Maria T, Roberts, Peggy, Onyike, Chiadi, D'Agostino, Daniel, Kielb, Stephanie, Galvin, James E, Cerbone, Brittany, Michel, Christina A, Jagust, William, Rusinek, Henry, de Leon, Mony J, Glodzik, Lidia, De Santi, Susan, Murali Doraiswamy, P., Petrella, Jeffrey R, Wong, Terence Z, Arnold, Steven E, Karlawish, Jason H, Wolk, David, Trojanowski, John Q, Smith, Charles D, Jicha, Greg, Hardy, Peter, Sinha, Partha, Oates, Elizabeth, Conrad, Gary, Lopez, Oscar L, Oakley, MaryAnn, Simpson, Donna M, Porsteinsson, Anton P, Toga, Arthur W, Goldstein, Bonnie S, Martin, Kim, Makino, Kelly M, Saleem Ismail, M., Brand, Connie, Mulnard, Ruth A, Thai, Gaby, McAdams-Ortiz, Catherine, Womack, Kyle, Mathews, Dana, Beckett, Laurel, Quiceno, Mary, Diaz-Arrastia, Ramon, King, Richard, Weiner, Myron, Martin-Cook, Kristen, DeVous, Michael, I Levey, Allan, Lah, James J, Cellar, Janet S, Burns, Jeffrey M, Green, Robert C, Anderson, Heather S, Swerdlow, Russell H, Apostolova, Liana, Tingus, Kathleen, Woo, Ellen, Silverman, Daniel H S, Lu, Po H, Bartzokis, George, Graff-Radford, Neill R, Parfitt, Francine, Saykin, Andrew J, Kendall, Tracy, Johnson, Heather, Farlow, Martin R, Hake, Ann Marie, Matthews, Brandy R, Herring, Scott, Hunt, Cynthia, van Dyck, Christopher H, Carson, Richard E, MacAvoy, Martha G, Morris, John, Chertkow, Howard, Bergman, Howard, Hosein, Chris, Robin Hsiung, Ging-Yuek, Feldman, Howard, Mudge, Benita, Assaly, Michele, Bernick, Charles, Munic, Donna, Kertesz, Andrew, Chen, Guanqun, Shaw, Leslie, Rogers, John, Trost, Dick, Kerwin, Diana, Lipowski, Kristine, Wu, Chuang-Kuo, Johnson, Nancy, Sadowsky, Carl, Martinez, Walter, Villena, Teresa, Turner, Raymond Scott, Khachaturian, Zaven, Johnson, Kathleen, Reynolds, Brigid, Sperling, Reisa A, Johnson, Keith A, Marshall, Gad, Frey, Meghan, Lane, Barton, Rosen, Allyson, Tinklenberg, Jared, Sabbagh, Marwan N, Sorensen, Greg, Belden, Christine M, Jacobson, Sandra A, Sirrel, Sherye A, Kowall, Neil, Killiany, Ronald, Budson, Andrew E, Norbash, Alexander, Johnson, Patricia Lynn, Allard, Joanne, Lerner, Alan, Kuller, Lew, Ogrocki, Paula, Hudson, Leon, Fletcher, Evan, Carmichae, Owen, Olichney, John, DeCarli, Charles, Kittur, Smita, Borrie, Michael, Lee, T-Y, Bartha, Rob, Raichle, Marcus, Johnson, Sterling, Asthana, Sanjay, Carlsson, Cynthia M, Preda, Adrian, Nguyen, Dana, Tariot, Pierre, Reeder, Stephanie, Bates, Vernice, Capote, Horacio, Rainka, Michelle, Paul, Steven, Scharre, Douglas W, Kataki, Maria, Adeli, Anahita, Zimmerman, Earl A, Celmins, Dzintra, Brown, Alice D, Pearlson, Godfrey D, Blank, Karen, Anderson, Karen, Santulli, Robert B, Davies, Peter, Kitzmiller, Tamar J, Schwartz, Eben S, Sink, Kaycee M, Williamson, Jeff D, Garg, Pradeep, Watkins, Franklin, Ott, Brian R, Querfurth, Henry, Tremont, Geoffrey, Salloway, Stephen, Fillit, Howard, Malloy, Paul, Correia, Stephen, Rosen, Howard J, Miller, Bruce L, Mintzer, Jacobo, Spicer, Kenneth, Bachman, David, Pasternak, Stephen, Rachinsky, Irina, Drost, Dick, Hefti, Franz, Pomara, Nunzio, Hernando, Raymundo, Sarrael, Antero, Schultz, Susan K, Ponto, Laura L Boles, Shim, Hyungsub, Elizabeth Smith, Karen, Relkin, Norman, Chaing, Gloria, Raudin, Lisa, Holtzman, David, Smith, Amanda, Fargher, Kristin, Raj, Balebail Ashok, Neylan, Thomas, Grafman, Jordan, Davis, Melissa, Morrison, Rosemary, Hayes, Jacqueline, Finley, Shannon, Friedl, Karl, Liu, Chunhua, Mesulam, Marek M, Fleischman, Debra, Arfanakis, Konstantinos, James, Olga, Massoglia, Dino, Jay Fruehling, J., Harding, Sandra, Peskind, Elaine R, Petrie, Eric C, Li, Gail, Yesavage, Jerome A, Potter, William, Taylor, Joy L, Furst, Ansgar J, Snyder, Peter, Schwartz, Adam, Montine, Tom, Thomas, Ronald G, Donohue, Michael, Walter, Sarah, Gessert, Devon, Sather, Tamie, Jin, Shichen, Jiminez, Gus, Harvey, Danielle, Bernstein, Matthew, Thompson, Paul, Schuff, Norbert, Borowski, Bret, Gunter, Jeff, Senjem, Matt, Vemuri, Prashanthi, Jones, David, Li, Lanlan, Kantarci, Kejal, Ward, Chad, Koeppe, Robert A, Foster, Norm, Reiman, Eric M, Chen, Kewei, Mathis, Chet, Landau, Susan, Cairns, Nigel J, Householder, Erin, Jiang, Xueyan, Taylor-Reinwald, Lisa, Lee, Virginia, Korecka, Magdalena, Figurski, Michal, Crawford, Karen, Neu, Scott, Foroud, Tatiana M, Potkin, Steven G, Shen, Li, Faber, Kelley, Han, Ying, Kim, Sungeun, Nho, Kwangsik, Thal, Leon, Buckholtz, Neil, Albert, Marylyn, Frank, Richard, Hsiao, John, Kaye, Jeffrey, Quinn, Joseph, Lind, Betty, Initiative, Alzheimer’s Disease Neuroimaging, Carter, Raina, Dolen, Sara, Schneider, Lon S, Pawluczyk, Sonia, Beccera, Mauricio, Teodoro, Liberty, Spann, Bryan M, Brewer, James, Vanderswag, Helen, Fleisher, Adam, Weiner, Michael W, Heidebrink, Judith L, Lord, Joanne L, Mason, Sara S, Albers, Colleen S, Knopman, David S, Johnson, Kris, Doody, Rachelle S, Villanueva-Meyer, Javier, Chowdhury, Munir, and Rountree, Susan

Subjects
Glucose metabolism, Positron emission tomography, Aging, Pattern, Brain, Glucose, Brain ageing, Alzheimer Disease, Fluorodeoxyglucose F18, Positron-Emission Tomography, Humans, Original Article, Cognitive Dysfunction, ddc:610, Geriatrics and Gerontology, Aged
Abstract

Exploring individual hallmarks of brain ageing is important. Here, we propose the age-related glucose metabolism pattern (ARGMP) as a potential index to characterize brain ageing in cognitively normal (CN) elderly people. We collected (18)F-fluorodeoxyglucose ((18)F-FDG) PET brain images from two independent cohorts: the Alzheimer’s Disease Neuroimaging Initiative (ADNI, N = 127) and the Xuanwu Hospital of Capital Medical University, Beijing, China (N = 84). During follow-up (mean 80.60 months), 23 participants in the ADNI cohort converted to cognitive impairment. ARGMPs were identified using the scaled subprofile model/principal component analysis method, and cross-validations were conducted in both independent cohorts. A survival analysis was further conducted to calculate the predictive effect of conversion risk by using ARGMPs. The results showed that ARGMPs were characterized by hypometabolism with increasing age primarily in the bilateral medial superior frontal gyrus, anterior cingulate and paracingulate gyri, caudate nucleus, and left supplementary motor area and hypermetabolism in part of the left inferior cerebellum. The expression network scores of ARGMPs were significantly associated with chronological age (R = 0.808, p

Published
2022

44. Geriatric dementia care at Ontario Shores: A new model of care

Author

Viau, Katelynn, Yaddaden, Amel, Lussier, Maxime, Bier, Nathalie, Earle, Julie, Duff-Woskosky, Andra, Bartfay, Wally, Desai, Chaitali, Zavitz, Karen, Horsburgh, Sheri, Gamble, Brenda, Lee, Linda, Hillier, Loretta M., Patel, Tejal, Molnar, Frank, Clarke, Jo-Anne, Borrie, Michael, Cammer, Allison, Morgan, Debra, Whiting, Susan, de Vos, Maya, Henri-Bhargava, Alexandre, Votova, Kristine, Delmar, Paul, Kerchner, Geoffrey A, Wang, Guoqiao, Bateman, Randall, Klein, Gregory, Andjelkovic, Mirjana, Abi-Saab, Danielle, Bullain, Szofia, Montoya, Alonso, Fontoura, Paulo, Doody, Rachelle, Tai, Elaine, Harvey, David, Hofmann, Carsten, Ristic, Smiljana, Rehal, Sunita, Voyle, Nicola, Baudler, Monika, Verreault, Phylicia, Rousseau, François, Keller, Evelyn, Simard, Alexandra, Azouaou, Nassima, Jarboui, Manel, Talleria, Lorraine, Duguay, Johanne, Mérette, Chantale, Labbé, Annie, de Arco, Rossana Peredo Nunez, Yous, Marie-Lee, Ploeg, Jenny, Kaasalainen, Sharon, Martin, Lori Schindel, Palumbo, Mary Val, Rambur, Betty, McKenna, Lori, Voyer, Philippe, Allaire, Émilie, Li, Bing, Thaut, Michael, Yogaparan, Thirumagal, Shanmuganathan, Thirunathan, Vickneswaran, Anicha, Sriharan, Sruthy, DeMarco, Mari L., Hsiung, Ging-Yuek Robin, Best, John R., Chertkow, Howard, Gauthier, Serge, Karlawish, Jason, Feldman, Howard, Spaner, Caroline, Christie, Brian, Musteata, Stela, Gawryluk, Jodie, Hofer, Scott, Henri-Bhargava, Alex, Kenny, Rebecca, Elliot, Valerie, Kosteniuk, Julie, Chow, Amanda Froehlich, Bayly, Melanie, O’Connell, Megan E., Kortzman, August, O’Connell, Megan, Kirk, Andrew, Conn, David, Sokoloff, Lisa, Feldman, Sid, Chau, James, Moser, Andrea, Lingum, Navena, Gingrich, Shaen, Shaikh, Salma, Rabheru, Kiran, Cassidy, Keri-Leigh, Checkland, Claire, Parsons, Daria, Massie, Ariane S., Mitchell, Julie Spence, Aksenchuk, Sophia, Lindsay, Barbara, Howard, Maria, Shaw, Courtney, Armitage, Gerrard, Capstick, Andrea, McNeil, Heather, Holyoke, Paul, Vines, Chanile, Giosa, Justine, Khan, Bilal, Shultz, Mary, BEAUCHET, Olivier, Sekhon, Harmehr, Allali, Gilles, Montembeault, Maxime, Brodeur, Catherine, Macoir, Joël, Maxwell, Colleen, Maclagan, Laura, Campitelli, Michael, Yao, Shenzhen, Dharma, Christoffer, Sherin, Tracey, Hogan, David, Bronskill, Susan, Ivo, Jessica, Faisal, Sadaf, McDougall, Aidan, Bauer, Jillian, Pritchard, Sarah, Chang, Feng, Mehta, Deval, Syed, Ali, Carter, Caitlin, Sharma, Shaambhavi, Nagge, Jeff, Naglie, Gary, Stasiulis, Elaine, Yamin, Stephanie, Vrkljan, Brenda, Tuokko, Holly, Sanford, Sarah, Porter, Michelle, Polgar, Jan, Myers, Anita, Moorhouse, Paige, Mazer, Barbara, Marshall, Shawn, Gélinas, Isabelle, Crizzle, Alexander, Byszewski, Anna, Belchior, Patricia, Bédard, Michel, Rapoport, Mark, Minish, Duane, Yetman, Linda, Stephenson, Margaret, McCloskey, Rose, Agbaku, Mansa, Jarrett, Pamela, Cavanagh, Jennifer, Loncar, Adele, Demers, Vickie, Gobessi, Linda, Lodha, Vinay, Scerbe, Andrea, Astell, Arlene, DesRoches, Andrea, Panyavin, Ivan, Feltz, Nick, Wittich, Walter, Aubin, Gabrielle, Hogan, Mariah, Swaminathan, Swathi, Altschuler, Aviva, Murphy, Kelly, Guthrie, Dawn, Williams, Nicole, Campos, Jennifer, Mick, Paul, Orange, Joseph B., Pichora-Fuller, M. Kathleen, Savundranayagam, Marie Y., Phillips, Natalie A., Giroud, Nathalie, Pichora-Fuller, Kathy, Al-Yawer, Faisal, Rehan, Sana, Phillips, Natalie, Beauchet, Olivier, Niculescu, Iulia, Iaboni, Andrea, Quirt, Hannah, Penko, Marion, Tsokas, Mario, Marshall, Cecelia, Flint, Alastair, McGilton, Katherine, O’Connell, Megan E, Stewart, Norma J, Seitz, Dallas, Daku, Jean, Hack, Tracy, Hoium, Faye, Kennett-Russill, Deb, Sauter, Kristen, Holley, Joanna, Wimhurst, Christine, Katchaluba, Janet, Mitchell, Debbie, Severina, Elmira, Dallaire-Théroux, Caroline, Saikali, Stéphan, Duchesne, Simon, Sivananthan, Saskia, Mirza, Saira, Saeed, Usman, Knight, Jo, Ramirez, Joel, Stuss, Donald, Yu, Di, Swardfager, Walter, Keith, Julia, Nestor, Sean, Black, Sandra, Masellis, Mario, Joyal, Marilyne, Kotz, Sonja A., Lenglos, Christophe, Renauld, Emmanuelle, Wilson, Maximiliano A., Fecteau, Shirley, Appel, Lora, Kisonas, Erika, Appel, Eva, Bartlett, Deanna, Klein, Jennifer, Rosenberg, Jarred, Smith, Christopher, Ali, Suad, Narang, Tanya, Wiseman, Micaela, Ein, Natalie, Orchanian-Cheff, Ani, Rylett, Jane, Hogan, David B., Rockwood, Kenneth, Dixon, Roger, Sun, Winnie, Hawkins, Stacey A., Awde, Carolee, Kay, Kelly, Huntsbarger, Deana, Ferrier, Erin, Sourial, Nadia, Arsenault-Lapierre, Genevieve, McAiney, Carrie, Vedel, Isabelle, Ingram, K. Jennifer, Frank, Andrew, Sabra, Iman, Wallace, Bruce, Breau, Michael, Sweet, Lisa, Goubran, Rafiq, Knoefel, Frank, Goubran, Rafik, Stroulia, Eleni, Ault, Laura, Kecskemet, Judith, Guseva, Elena, Lungu, Ovidiu, Goldman, Sondra, Wilchesky, Machelle, Johri, Fozia, Turner, Angelese, Lavoie, Monica, Tang-Wai, David, Leonard, Carol, Graham, Naida L., Rochon, Elizabeth, Middleton, Laura, Herrmann, Nathan, Oh, Paul, Regan, Kayla, Bechard, Lauren, Lanctôt, Krista, Freeman, Shannon, Pettersen, Jacqueline, Tomasone, Jennifer, Dupuis, Sherry, Giangregorio, Lora, Ferris, Rebecca, Stultz, Tim, Mallard, Kirsten, Campbell, Elaine, Chatterjee, Atri, Mackenzie, Ian, Reinshagen, Veronica Hirsh, Ducharme, Blake, Mousavi, Ali, Gill, Sascha, Mouches, Pauline, Wang, Meng, Rajasheskar, Deepthi, MacMaster, Frank, Forkert, Nils, Smith, Eric, Ismail, Zahinoor, Varatharajah, Breni, Camicioli, Richard, Gee, Myrlene, Zwiers, Angela, Sekhon, Ramnik, Charlton, Anna, Arsenault-Lapierre, Geneviève, Ingram, Jennifer, Hawkins, Stacey, Mousavi, SeyedAli, Mackenzie, Ian R. A., Hirsh-Reinshagen, Veronica, Hsiung, Ging-Yuek. R., Gillingham, Susan M.E., Anderson, Nicole D., Alain, Claude, Georgievski, Georgi, Alfaro, Leonardo, McClenaghan, Meridith, Soares, Daniela, Matheson, Maureen, Stanoulis, Krisanne, Boyle, Daniel, Chau, Linh, Pelc, Jordan, Snash, Nadia, Byrne, Joanne, Elalouf, Karine, Alfaro, Andrea Urqueta, Johnson, Aaron, Marinier, Julie-Andrée, Kehayia, Eva, Gagné, Jean-Pierre, Murphy, Caitlin, Ellen, Ruth, Flowers, Brandi, Boulton, Karen Lee, Subotic, Arsenije, McCreary, Cheryl R., Nguyen, Amanda, Saad, Feryal, Alvarez, Ana, Beaudin, Andrew E, Pike, Bruce, Smith, Eric E, Hu, Sophie, Patten, Scott, Fick, Gordon, Sapkota, Shraddha, Mirza, Saira Saeed, Scott, Christopher J., Stuss, Donald T., Black, Sandra E., Le Blanc, Gabriella, Ducharme, Simon, Meilleur-Durand, Synthia, Lévesque, Marianne, St-Onge, Frédéric, Cunnane, Stephen, Villeneuve, Sylvia, Callahan, Brandy, Laforce, Robert, Cetin-Sahin, Deniz, Cummings, Greta G., Schuster, Tibor, Karanofsky, Mark, De Jesus, Belmir J., Cassani, Raymundo, Cecchi, Marco, Fadem, K. C., McGeown, William J., Falk, Tiago H., Chu, Charlene, Zdaniuk, Natalia, Wang, Rosalie, Ouellet, Marie-Christine, Cassivi-Joncas, Alison, Godard-Sebillotte, Claire, Rochette, Louis, Pelletier, Eric, Strumpf, Erin, Margo-Dermer, Eva, Silver, Hilah, Vafaei, Rod, Fok, Alice C, Hsiung, Ging-Yuek R., Ursenbach, Jake, Bethell, Jennifer, Neuman, Mark D, Bateman, Brian T, Hill, Andrea, Wunsch, Hannah, Ritchie, Kim, Cramm, Heidi, Aiken, Alice, Donnelly, Catherine, Goldie, Katie, Delara, Mahin, Ozzoude, Miracle, Varriano, Brenda, McLaughlin, Paula, Troyer, Angela, Bartha, Robert, Symons, Sean, Kwan, Donna, Tan, Brian, Swartz, Richard H., Saposnik, Gustavo, Tartaglia, Maria C., Ahuja, Manan, Siddhpuria, Shailee, Gormley, Jessica, Reppas, Christina, Wong, Eric, Lee, Justin, Patterson, Christopher, Walker, Jennifer, Warry, Wayne, Blind, Melissa, Allaby, Cheryl, Pitawanakwat, Karen, Zhao, Yantao, Lemieux, Andrine, Jacklin, Kristen, Crowshoe, Lindsay, Boehme, Gail, McKenna, Betty, Boyling, Elaine, Webkamigad, Sharlene, Bigeagle, Louise, Akan, Nicole, Wallace, Lindsay, Theou, Olga, Bennett, David, Darvesh, Sultan, Kirkland, Susan, Fisk, John, Andrew, Melissa, Cullen, Stephanie, Carroll, Susan, Mahon, Joel, Sarquis-Adamson, Yanina, Montero-Odasso, Manuel, Sharma, Nabina, Beaton, Derek, Roberts, Angela, Munoz, Doug, Swartz, Richard, Breen, David, Lang, Anthony, Fischer, COrrine, Fischer, Corrine, Kumar, Sanjeeve, Freedman, Morris, Finger, Elizabeth, Zinman, Lorne, Grimes, David A., Sunderland, Kelly M., Binns, Malcolm A., Strother, Stephen C., Mandzia, Jennifer, Orange, JB, Tartaglia, Carmela, El Shatshat, Amna, Rao, Praveen P.N., Teves, Julia, Bodkin, R Jack, Ho, Joanne M-W, Mehdizadeh, Sina, Dolatabadi, Elham, Ng, Kimberley-Dale, Arora, Twinkle, Jizmejian, Melody, Mansfield, Avril, Taati, Babak, Levy, Jake, Savard, Melissa, Pascoal, Tharick, Soucy, Jean-Paul, Rosa-Neto, Pedro, Martins, Felicia, Waller, Shannon, Flora, Parminder, Morland, Chris, Donovan, Steve, Fels, Deborah, Desai, Shital, Boger, Jennifer, Shashtri, Karan, Persaud, Deanna, Marashi, Sheida, Nedlund, Ann-Charlotte, Mäki-Petäjä-Leinonen, Anna, Nygård, Louise, Issakainen, Mervi, ryd, Charlotta, Pan, Yuhan, Joddrell, Phil, Dove, Erica, Owens, Hollis, Park, Elly, Liu, Lili, Kaufman, David, Simonian, Natalie, Chen, Ying, Sunderland, Kelly, Fraser, Julia, Swartz, Rick, Strother, Stephen, Legrand, Diego, Roberge, Pasquale, Vanasse, Alain, Bocti, Christian, Pirrie, Lorraine, Gray, Carolyn Steele, Nippak, Pria, Coughlan, Dave, Teselink, Johannes, Hermann, Nathan, Rasquinha, Fawn, Lanctot, Krista, Webber, Jodi, Woo, Kevin, Chamoun, Elicia, Coulombe, Valérie, Sellami, Leila, Paquette-Raynard, Emmanuelle, Gardner, Sandra, van Zon, Lorraine, Moy, Sally, Sidrak, Mariam, Sternhill, Janis, Feldman, Sidney, Karuza, Jurgis, Berall, Anna, Thomas, Neil, Mattek, Nora, Riley, Thomas, Reynolds, Christina, Marcoe, Jennifer, Sharma, Nicole, Kaye, Jeffrey, Jagtap, Shreya, Rotenberg, Shlomit, Vandermorris, Susan, Anderson, ND, Dawson, DR, Chater, Catherine, Soor, Jaspreet, Ji, Xiang, Koo, Morgan, Compagnone, Jordana, Kertes, Peter, Juby, Angela, Mager, Diana, Davis, Christopher, Jay, David, Blackburn, Toni, Brocks, Dion, Lee, Hyunwoo, Wiggermann, Vanessa, Rauscher, Alexander, Lam, Kevin, Tam, Roger, Popuri, Karteek, Beg, Mirza Faisal, Jacova, Claudia, Sossi, Vesna, Bindra, Jessica, Bouvier, Liziane, Monetta, Laura, Vitali, Paolo, Martel-Sauvageau, Vincent, Godin, Judith, McNeil, Shelly, McElhaney, Janet, Laughton, Thomas, Ho, Joanne, Tung, Jennifer, Dubé, Joseph B., Lin, Tianzhen, Best, Sarah, Truemner, Julia, Sargeant, Patricia L., Borrie, Michael J., Fogarty, Jennifer, Bassi, Nimi, Di Prospero, Cynthia, Whitehead, Victor, Pilon, Randi, Wong, Timothy, Elhayek, Nada, Dasgupta, Monidipa, Davis, Daniel, ORegan, Niamh, Kröger, Edeltraut, Furrer, Daniela, Wilcheski, Machelle, Morin, Michèle, Carmichael, Pierre-Hugues, Champoux, Nathalie, Monette, Johanne, Giguère, Anik, Aubin, Michèle, Durand, Pierre, Whiteside, Jena, Mele, Bria, Merrikh, Daria, Goodarzi, Zahra, Seary, Judith Anne, Bulley, Heather, Diciacca, Allison, Esseltine, Julia, Gaiger, Erin, Jankovic, Ivana, Mackenzie, Stephanie, McBride, Meghan, Knopp-Sihota, Jennifer A., Hoben, Mathias, Poss, Jeffrey W., Rachor, Geoffrey S., Estabrooks, Carole A., and Iroanyah, Ngozi

Subjects
Abstracts: Posters
Published
2020

45. KL-VS heterozygosity is associated with lower amyloid-dependent tau accumulation and memory impairment in Alzheimer’s disease

Author

Neitzel, Julia, Franzmeier, Nicolai, Petersen, Ronald, Clark, David, Geldmacher, David, Brockington, John, Roberson, Erik, Grossman, Hillel, Mitsis, Effie, deToledo-Morrell, Leyla, Shah, Raj C, Duara, Ranjan, Varon, Daniel, Jack, Clifford R, Greig, Maria T, Roberts, Peggy, Albert, Marilyn, Onyike, Chiadi, D'Agostino, Daniel, Kielb, Stephanie, Galvin, James E, Pogorelec, Dana M, Cerbone, Brittany, Michel, Christina A, Jagust, William, Rusinek, Henry, de Leon, Mony J, Glodzik, Lidia, De Santi, Susan, Doraiswamy, P Murali, Petrella, Jeffrey R, Wong, Terence Z, Arnold, Steven E, Karlawish, Jason H, Wolk, David, Trojanowki, John Q, Smith, Charles D, Jicha, Greg, Hardy, Peter, Sinha, Partha, Oates, Elizabeth, Conrad, Gary, Lopez, Oscar L, Oakley, MaryAnn, Simpson, Donna M, Porsteinsson, Anton P, Toga, Arthur W, Goldstein, Bonnie S, Martin, Kim, Makino, Kelly M, Ismail, Muhammad, Brand, Connie, Mulnard, Ruth A, Thai, Gaby, Mc Adams Ortiz, Catherine, Womack, Kyle, Mathews, Dana, Beckett, Laurel, Quiceno, Mary, Arrastia, Ramon Diaz, King, Richard, Weiner, Myron, Cook, Kristen Martin, DeVous, Michael, Levey, Allan I, Lah, James J, Cellar, Janet S, Burns, Jeffrey M, Green, Robert C, Anderson, Heather S, Swerdlow, Russell H, Apostolova, Liana, Tingus, Kathleen, Woo, Ellen, Silverman, Daniel H S, Lu, Po H, Bartzokis, George, Radford, Neill R Graff, ParfittH, Francine, Saykin, Andrew J, Kendall, Tracy, Johnson, Heather, Farlow, Martin R, Hake, Ann Marie, Matthews, Brandy R, Herring, Scott, Hunt, Cynthia, van Dyck, Christopher H, Carson, Richard E, MacAvoy, Martha G, Morris, John, Chertkow, Howard, Bergman, Howard, Hosein, Chris, Black, Sandra, Stefanovic, Bojana, Caldwell, Curtis, Hsiung, Ging Yuek Robin, Feldman, Howard, Mudge, Benita, Past, Michele Assaly, Shaw, Leslie, Kertesz, Andrew, Rogers, John, Trost, Dick, Bernick, Charles, Munic, Donna, Kerwin, Diana, Mesulam, Marek Marsel, Lipowski, Kristine, Wu, Chuang Kuo, Johnson, Nancy, Rubinski, Anna, Liu, Enchi, Sadowsky, Carl, Martinez, Walter, Villena, Teresa, Turner, Raymond Scott, Johnson, Kathleen, Reynolds, Brigid, Sperling, Reisa A, Johnson, Keith A, Marshall, Gad, Frey, Meghan, Montine, Tom, Yesavage, Jerome, Taylor, Joy L, Lane, Barton, Rosen, Allyson, Tinklenberg, Jared, Sabbagh, Marwan N, Belden, Christine M, Jacobson, Sandra A, Sirrel, Sherye A, Kowall, Neil, Thomas, Ronald G, Killiany, Ronald, Budson, Andrew E, Norbash, Alexander, Johnson, Patricia Lynn, Obisesan, Thomas O, Wolday, Saba, Allard, Joanne, Lerner, Alan, Ogrocki, Paula, Hudson, Leon, Donohue, Michael, Fletcher, Evan, Carmichael, Owen, Olichney, John, DeCarli, Charles, Kittur, Smita, Borrie, Michael, Lee, T. Y., Bartha, Rob, Johnson, Sterling, Asthana, Sanjay, Walter, Sarah, Carlsson, Cynthia M, Potkin, Steven G, Preda, Adrian, Nguyen, Dana, Tariot, Pierre, Reeder, Stephanie, Bates, Vernice, Capote, Horacio, Rainka, Michelle, Scharre, Douglas W, Gessert, Devon, Kataki, Maria, Adeli, Anahita, Zimmerman, Earl A, Celmins, Dzintra, Brown, Alice D, Pearlson, Godfrey D, Blank, Karen, Anderson, Karen, Santulli, Robert B, Kitzmiller, Tamar J, Sather, Tamie, Schwartz, Eben S, SinkS, Kaycee M, Williamson, Jeff D, Garg, Pradeep, Watkins, Franklin, Ott, Brian R, Querfurth, Henry, Tremont, Geoffrey, Salloway, Stephen, Malloy, Paul, Jiminez, Gus, Correia, Stephen, Rosen, Howard J, Miller, Bruce L, Mintzer, Jacobo, Spicer, Kenneth, Bachman, David, Finger, Elizabether, Pasternak, Stephen, Rachinsky, Irina, Drost, Dick, Harvey, Danielle, Pomara, Nunzio, Hernando, Raymundo, Sarrael, Antero, Schultz, Susan K, Ponto, Laura L Boles, Shim, Hyungsub, Smith, Karen Elizabeth, Relkin, Norman, Chaing, Gloria, Raudin, Lisa, Bernstein, Matthew, Smith, Amanda, Fargher, Kristin, Raj, Balebail Ashok, Dichgans, Martin, Fox, Nick, Thompson, Paul, Schuff, Norbert, DeCArli, Charles, Borowski, Bret, Gunter, Jeff, Senjem, Matt, Vemuri, Prashanthi, Jones, David, Kantarci, Kejal, Brendel, Matthias, Ward, Chad, Koeppe, Robert A, Foster, Norm, Reiman, Eric M, Chen, Kewei, Mathis, Chet, Landau, Susan, Cairns, Nigel J, Householder, Erin, Reinwald, Lisa Taylor, Initiative, Alzheimer’s Disease Neuroimaging, Lee, Virginia, Korecka, Magdalena, Figurski, Michal, Crawford, Karen, Neu, Scott, Foroud, Tatiana M, Potkin, Steven, Shen, Li, Kelley, Faber, Kim, Sungeun, Malik, Rainer, Nho, Kwangsik, Kachaturian, Zaven, Frank, Richard, Snyder, Peter J, Molchan, Susan, Kaye, Jeffrey, Quinn, Joseph, Lind, Betty, Carter, Raina, Dolen, Sara, Ewers, Michael, Schneider, Lon S, Pawluczyk, Sonia, Beccera, Mauricio, Teodoro, Liberty, Spann, Bryan M, Brewer, James, Vanderswag, Helen, Fleisher, Adam, Heidebrink, Judith L, Lord, Joanne L, Weiner, Michael, Mason, Sara S, Albers, Colleen S, Knopman, David S, Johnson, Kris, Doody, Rachelle S, Meyer, Javier Villanueva, Chowdhury, Munir, Rountree, Susan, Dang, Mimi, Stern, Yaakov, Aisen, Paul, Honig, Lawrence S, Bell, Karen L, Ances, Beau, Morris, John C, Carroll, Maria, Leon, Sue, Mintun, Mark A, Schneider, Stacy, OliverNG, Angela, Griffith, Randall, Radiology & Nuclear Medicine, and Epidemiology

Subjects
Male, Heterozygote, metabolism [Amyloid beta-Peptides], Molecular imaging, Gene Expression, genetics [Alzheimer Disease], klotho protein, tau Proteins, Polymorphism, Single Nucleotide, Article, metabolism [Apolipoproteins E], Apolipoproteins E, genetics [Memory Disorders], Alzheimer Disease, mental disorders, Humans, metabolism [Glucuronidase], diagnostic imaging [Brain], Klotho Proteins, Aged, Glucuronidase, Memory Disorders, Amyloid beta-Peptides, genetics [Glucuronidase], methods [Positron-Emission Tomography], metabolism [Memory Disorders], Brain, Alzheimer's disease, Middle Aged, metabolism [tau Proteins], Haplotypes, metabolism [Brain], Positron-Emission Tomography, genetics [Apolipoproteins E], Dementia, Female, ddc:500, metabolism [Alzheimer Disease], Protein Binding
Abstract

Klotho-VS heterozygosity (KL-VShet) is associated with reduced risk of Alzheimer’s disease (AD). However, whether KL-VShet is associated with lower levels of pathologic tau, i.e., the key AD pathology driving neurodegeneration and cognitive decline, is unknown. Here, we assessed the interaction between KL-VShet and levels of beta-amyloid, a key driver of tau pathology, on the levels of PET-assessed neurofibrillary tau in 551 controls and patients across the AD continuum. KL-VShet showed lower cross-sectional and longitudinal increase in tau-PET per unit increase in amyloid-PET when compared to that of non-carriers. This association of KL-VShet on tau-PET was stronger in Klotho mRNA-expressing brain regions mapped onto a gene expression atlas. KL-VShet was related to better memory functions in amyloid-positive participants and this association was mediated by lower tau-PET. Amyloid-PET levels did not differ between KL-VShet carriers versus non-carriers. Together, our findings provide evidence to suggest a protective role of KL-VShet against amyloid-related tau pathology and tau-related memory impairments in elderly humans at risk of AD dementia., The KL-VS haplotype of the Klotho gene has been associated with reduced risk of Alzheimer’s disease and dementia. Here the authors show an association between the KL-VS haplotype and amyloid-dependent tau accumulation using PET data.

Published
2021

46. Towards Dementia Friendly Emergency Departments: A Mixed Method Exploratory Study Identifying Opportunities to Improve the Quality and Safety of Care for People with Dementia in Emergency Departments

Author

Delmar, Paul, Kerchner, Geoffrey A, Wang, Guoqiao, Bateman, Randall, Klein, Gregory, Andjelkovic, Mirjana, Abi-Saab, Danielle, Bullain, Szofia, Montoya, Alonso, Fontoura, Paulo, Doody, Rachelle, Shaw, Courtney, Armitage, Gerrard, Capstick, Andrea, Walker, Jennifer, Warry, Wayne, Blind, Melissa, Patterson, Christopher, Allaby, Cheryl, Pitawanakwat, Karen, Zhao, Yantao, Lemieux, Andrine, Jacklin, Kristen, O’Connell, Megan E, Dove, Erica, Astell, Arlene, Juby, Angela, Mager, Diana, Davis, Christopher, Jay, David, and Blackburn, Toni

Subjects
Abstracts
Published
2020

49. Higher CSF sTREM2 attenuates ApoE4-related risk for cognitive decline and neurodegeneration

Author

Franzmeier, Nicolai, Suárez-Calvet, M., Kleinberger, Gernot, Doraiswamy, P Murali, Petrella, Jeffrey R, Arnold, Steven E, Karlawish, Jason H, Wolk, David, Smith, Charles D, Jicha, Greg, Hardy, Peter, Lopez, Oscar L, Oakley, Mary Ann, Haass, Christian, Simpson, Donna M, Ismail, M Saleem, Brand, Connie, Mulnard, Ruth A, Thai, Gaby, Mc-Adams-Ortiz, Catherine, Diaz-Arrastia, Ramon, Martin-Cook, Kristen, DeVous, Michael, Levey, Allan I, Ewers, Michael, Lah, James J, Cellar, Janet S, Burns, Jeffrey M, Anderson, Heather S, Swerdlow, Russell H, Bartzokis, George, Silverman, Daniel H S, Lu, Po H, Apostolova, Liana, Graff-Radford, Neill R, Initiative, Alzheimer’s Disease Neuroimaging, Parfitt, Francine, Johnson, Heather, Farlow, Martin, Herring, Scott, Hake, Ann M, van Dyck, Christopher H, Carson, Richard E, MacAvoy, Martha G, Chertkow, Howard, Bergman, Howard, Weiner, Michael, Hosein, Chris, Black, Sandra, Stefanovic, Bojana, Caldwell, Curtis, Hsiung, Ging-Yuek Robin, Feldman, Howard, Assaly, Michele, Kertesz, Andrew, Rogers, John, Trost, Dick, Aisen, Paul, Bernick, Charles, Munic, Donna, Wu, Chuang-Kuo, Johnson, Nancy, Mesulam, Marsel, Sadowsky, Carl, Martinez, Walter, Villena, Teresa, Turner, Raymond Scott, Johnson, Kathleen, Novak, Gerald, Reynolds, Brigid, Sperling, Reisa A, Frey, Meghan, Johnson, Keith A, Rosen, Allyson, Tinklenberg, Jared, Ashford, Wes, Sabbagh, Marwan, Belden, Christine, Jacobson, Sandra, Green, Robert C, Killiany, Ronald, Norbash, Alexander, Nair, Anil, Obisesan, Thomas O, Wolday, Saba, Bwayo, Salome K, Lerner, Alan, Hudson, Leon, Ogrocki, Paula, Fletcher, Evan, Montine, Tom, Carmichael, Owen, Kittur, Smita, Borrie, Michael, Lee, T-Y, Bartha, Rob, Johnson, Sterling, Asthana, Sanjay, Carlsson, Cynthia M, Potkin, Steven G, Preda, Adrian, Petersen, Ronald, Nguyen, Dana, Tariot, Pierre, Fleisher, Adam, Reeder, Stephanie, Bates, Vernice, Capote, Horacio, Rainka, Michelle, Hendin, Barry A, Scharre, Douglas W, Kataki, Maria, Frontzkowski, Lukas, Gamst, Anthony, Zimmerman, Earl A, Celmins, Dzintra, Brown, Alice D, Hosp, Hartford, Pearlson, Godfrey D, Blank, Karen, Anderson, Karen, Santulli, Robert B, Schwartz, Eben S, Williamson, Jeff D, Thomas, Ronald G, Sink, Kaycee M, Watkins, Franklin, Ott, Brian R, Querfurth, Henry, Tremont, Geoffrey, Salloway, Stephen, Malloy, Paul, Correia, Stephen, Rosen, Howard J, Miller, Bruce L, Donohue, Michael, Mintzer, Jacobo, Longmire, Crystal Flynn, Spicer, Kenneth, Walter, Sarah, Gessert, Devon, Sather, Tamie, Beckett, Laurel, Harvey, Danielle, Kornak, John, Jack, Clifford R, Moore, Annah, Dale, Anders, Bernstein, Matthew, Felmlee, Joel, Fox, Nick, Thompson, Paul, Schuff, Norbert, Alexander, Gene, DeCarli, Charles, Jagust, William, Bandy, Dan, Hohman, Timothy J, Koeppe, Robert A, Foster, Norm, Reiman, Eric M, Chen, Kewei, Mathis, Chet, Morris, John, Cairns, Nigel J, Taylor-Reinwald, Lisa, Trojanowki, J. Q., Shaw, Les, Morenas-Rodriguez, Estrella, Lee, Virginia M Y, Korecka, Magdalena, Toga, Arthur W, Crawford, Karen, Neu, Scott, Saykin, Andrew J, Foroud, Tatiana M, Potkin, Steven, Shen, Li, Kachaturian, Zaven, Nuscher, Brigitte, Frank, Richard, Snyder, Peter J, Molchan, Susan, Kaye, Jeffrey, Dolen, Sara, Quinn, Joseph, Schneider, Lon S, Pawluczyk, Sonia, Spann, Bryan M, Brewer, James, Shaw, Leslie, Vanderswag, Helen, Heidebrink, Judith L, Lord, Joanne L, Johnson, Kris, Doody, Rachelle S, Villanueva-Meyer, Javier, Chowdhury, Munir, Stern, Yaakov, Honig, Lawrence S, Bell, Karen L, Trojanowski, John Q, Morris, John C, Mintun, Mark A, Schneider, Stacy, Marson, Daniel, Griffith, Randall, Clark, David, Grossman, Hillel, Mitsis, Effie, Romirowsky, Aliza, deToledo-Morrell, Leyla, Dichgans, Martin, Shah, Raj C, Duara, Ranjan, Varon, Daniel, Roberts, Peggy, Albert, Marilyn, Onyike, Chiadi, Kielb, Stephanie, Rusinek, Henry, de Leon, Mony J, and Glodzik, Lidia

Subjects
Male, Aging, pathology [Cognitive Dysfunction], Apolipoprotein E4, Cognitive decline, genetics [Alzheimer Disease], Neurodegenerative, lcsh:Geriatrics, Alzheimer's Disease, lcsh:RC346-429, pathology [Alzheimer Disease], Immunologic, Receptors, 80 and over, 2.1 Biological and endogenous factors, sTREM2, Microglial activation, Aetiology, Receptors, Immunologic, genetics [Apolipoprotein E4], Aged, 80 and over, Membrane Glycoproteins, pathology [Nerve Degeneration], cerebrospinal fluid [Alzheimer Disease], cerebrospinal fluid [Cognitive Dysfunction], Neurological, Female, cerebrospinal fluid [Membrane Glycoproteins], Alzheimer’s disease, Research Article, Clinical Sciences, ApoE4, Clinical Research, Alzheimer Disease, ddc:570, Acquired Cognitive Impairment, Genetics, Humans, Cognitive Dysfunction, Genetic Predisposition to Disease, Neurodegeneration, lcsh:Neurology. Diseases of the nervous system, Aged, Neurology & Neurosurgery, Neurosciences, genetics [Cognitive Dysfunction], Alzheimer's Disease including Alzheimer's Disease Related Dementias (AD/ADRD), Alzheimer’s Disease Neuroimaging Initiative, Brain Disorders, lcsh:RC952-954.6, Nerve Degeneration, Dementia
Abstract

Background The Apolipoprotein E ε4 allele (i.e. ApoE4) is the strongest genetic risk factor for sporadic Alzheimer’s disease (AD). TREM2 (i.e. Triggering receptor expressed on myeloid cells 2) is a microglial transmembrane protein brain that plays a central role in microglia activation in response to AD brain pathologies. Whether higher TREM2-related microglia activity modulates the risk to develop clinical AD is an open question. Thus, the aim of the current study was to assess whether higher sTREM2 attenuates the effects of ApoE4-effects on future cognitive decline and neurodegeneration. Methods We included 708 subjects ranging from cognitively normal (CN, n = 221) to mild cognitive impairment (MCI, n = 414) and AD dementia (n = 73) from the Alzheimer’s disease Neuroimaging Initiative. We used linear regression to test the interaction between ApoE4-carriage by CSF-assessed sTREM2 levels as a predictor of longitudinally assessed cognitive decline and MRI-assessed changes in hippocampal volume changes (mean follow-up of 4 years, range of 1.7-7 years). Results Across the entire sample, we found that higher CSF sTREM2 at baseline was associated with attenuated effects of ApoE4-carriage (i.e. sTREM2 x ApoE4 interaction) on longitudinal global cognitive (p = 0.001, Cohen’s f 2 = 0.137) and memory decline (p = 0.006, Cohen’s f 2 = 0.104) as well as longitudinally assessed hippocampal atrophy (p = 0.046, Cohen’s f 2 = 0.089), independent of CSF markers of primary AD pathology (i.e. Aβ1–42, p-tau181). While overall effects of sTREM2 were small, exploratory subanalyses stratified by diagnostic groups showed that beneficial effects of sTREM2 were pronounced in the MCI group. Conclusion Our results suggest that a higher CSF sTREM2 levels are associated with attenuated ApoE4-related risk for future cognitive decline and AD-typical neurodegeneration. These findings provide further evidence that TREM2 may be protective against the development of AD.

Published
2020

50. Neuropathologic features associated with basal forebrain atrophy in Alzheimer disease

Author

Teipel, Stefan J, Fritz, H-Christian, Toga, Arthur W., Roberts, Peggy, Albert, Marilyn, Onyike, Chiadi, Kielb, Stephanie, Rusinek, Henry, de Leon, Mony J, Glodzik, Lidia, De Santi, Susan, Doraiswamy, P. Murali, Petrella, Jeffrey R., Beckett, Laurel, Coleman, R. Edward, Arnold, Steven E., Karlawish, Jason H., Wolk, David, Smith, Charles D., Jicha, Greg, Hardy, Peter, Lopez, Oscar L., Oakley, MaryAnn, Simpson, Donna M., Green, Robert C., Porsteinsson, Anton P., Goldstein, Bonnie S., Martin, Kim, Makino, Kelly M., Ismail, M. Saleem, Brand, Connie, Mulnard, Ruth A., Thai, Gaby, Mc-Adams-Ortiz, Catherine, Womack, Kyle, Saykin, Andrew J., Mathews, Dana, Quiceno, Mary, Diaz-Arrastia, Ramon, King, Richard, Weiner, Myron, Martin-Cook, Kristen, DeVous, Michael, Levey, Allan I., Lah, James J., Cellar, Janet S., Morris, John, Burns, Jeffrey M., Anderson, Heather S., Swerdlow, Russell H., Apostolova, Liana, Lu, Po H., Bartzokis, George, Silverman, Daniel H. S., Graff-Radford, Neill R, Parfitt, Francine, Johnson, Heather, Liu, Enchi, Farlow, Martin R., Hake, Ann Marie, Matthews, Brandy R., Herring, Scott, van Dyck, Christopher H., Carson, Richard E., MacAvoy, Martha G., Chertkow, Howard, Bergman, Howard, Hosein, Chris, Black, Sandra, Stefanovic, Bojana, Caldwell, Curtis, Hsiung, Ging-Yuek Robin, Feldman, Howard, Mudge, Benita, Assaly, Michele, Kertesz, Andrew, Rogers, John, Trost, Dick, Montine, Tom, Bernick, Charles, Munic, Donna, Kerwin, Diana, Mesulam, Marek-Marsel, Lipowski, Kristina, Wu, Chuang-Kuo, Johnson, Nancy, Sadowsky, Carl, Martinez, Walter, Villena, Teresa, Petersen, Ronald, Scott Turner, Raymond, Johnson, Kathleen, Reynolds, Brigid, Sperling, Reisa A., Johnson, Keith A., Marshall, Gad, Frey, Meghan, Yesavage, Jerome, Taylor, Joy L., Lane, Barton, Aisen, Paul, Rosen, Allyson, Tinklenberg, Jared, Sabbagh, Marwan, Belden, Christine, Jacobson, Sandra, Kowall, Neil, Killiany, Ronald, Budson, Andrew E., Norbash, Alexander, Johnson, Patricia Lynn, Grothe, Michel, Gamst, Anthony, Obisesan, Thomas O., Wolday, Saba, Bwayo, Salome K., Lerner, Alan, Hudson, Leon, Ogrocki, Paula, Fletcher, Evan, Carmichael, Owen, Olichney, John, DeCarli, Charles, Thomas, Ronald G., Kittur, Smita, Borrie, Michael, Lee, T-Y, Bartha, Rob, Johnson, Sterling, Asthana, Sanjay, Carlsson, Cynthia M., Potkin, Steven G., Preda, Adrian, Nguyen, Dana, Donohue, Michael, Tariot, Pierre, Fleisher, Adam, Reeder, Stephanie, Bates, Vernice, Capote, Horacio, Rainka, Michelle, Scharre, Douglas W., Kataki, Maria, Zimmerman, Earl A., Celmins, Dzintra, Walter, Sarah, Brown, Alice D., Pearlson, Godfrey D., Blank, Karen, Anderson, Karen, Santulli, Robert B., Schwartz, Eben S., Sink, Kaycee M., Williamson, Jeff D., Garg, Pradeep, Gessert, Devon, Watkins, Franklin, Ott, Brian R., Querfurth, Henry, Tremont, Geoffrey, Salloway, Stephen, Malloy, Paul, Correia, Stephen, Rosen, Howard J., Miller, Bruce L., Mintzer, Jacobo, Sather, Tamie, Longmire, Crystal Flynn, Spicer, Kenneth, Finger, Elizabether, Rachinsky, Irina, Drost, Dick, Pomara, Nunzio, Hernando, Raymundo, Sarrael, Antero, Schultz, Susan K., Boles Ponto, Laura L., Shim, Hyungsub, Smith, Karen Elizabeth, Relkin, Norman, Chaing, Gloria, Raudin, Lisa, Smith, Amanda, Fargher, Kristin, Raj, Balebail Ashok, Harvey, Danielle, Initiative, Alzheimer's Disease Neuroimaging, Kornak, John, Jack, Clifford R., Dale, Anders, Bernstein, Matthew, Felmlee, Joel, Fox, Nick, Thompson, Paul, Schuff, Norbert, Alexander, Gene, Weiner, Michael, Jagust, William, Bandy, Dan, Koeppe, Robert A., Foster, Norm, Reiman, Eric M., Chen, Kewei, Mathis, Chet, Cairns, Nigel J., Taylor-Reinwald, Lisa, Trojanowki, J. Q., Shaw, Les, Lee, Virginia M Y, Korecka, Magdalena, Crawford, Karen, Neu, Scott, Foroud, Tatiana M., Potkin, Steven, Shen, Li, Kachaturian, Zaven, Frank, Richard, Snyder, Peter J., Molchan, Susan, Kaye, Jeffrey, Quinn, Joseph, Lind, Betty, Dolen, Sara, Schneider, Lon S., Pawluczyk, Sonia, Spann, Bryan M., Brewer, James, Vanderswag, Helen, Heidebrink, Judith L., Lord, Joanne L., Johnson, Kris, Doody, Rachelle S., Villanueva-Meyer, Javier, Chowdhury, Munir, Stern, Yaakov, Honig, Lawrence S., Bell, Karen L., Morris, John C., Ances, Beau, Carroll, Maria, Leon, Sue, Mintun, Mark A., Schneider, Stacy, Trojanowki, John Q., Marson, Daniel, Griffith, Randall, Clark, David, Grossman, Hillel, Mitsis, Effie, Romirowsky, Aliza, deToledo-Morrell, Leyla, Shah, Raj C., Duara, Ranjan, Varon, Daniel, Instituto de Salud Carlos III, European Commission, and Ministerio de Ciencia, Innovación y Universidades (España)

Subjects
0301 basic medicine, Male, medicine.medical_specialty, Multivariate analysis, diagnostic imaging [Basal Forebrain], Basal Forebrain, pathology [Basal Forebrain], Logistic regression, Article, 03 medical and health sciences, pathology [Alzheimer Disease], 0302 clinical medicine, Atrophy, Alzheimer Disease, Internal medicine, Ischaemic stroke, Medicine, Humans, ddc:610, Stroke, Cost implications, Aged, Aged, 80 and over, pathology [Atrophy], business.industry, medicine.disease, Magnetic Resonance Imaging, 030104 developmental biology, Charlson comorbidity index, Female, Neurology (clinical), Alzheimer's disease, business, diagnostic imaging [Alzheimer Disease], 030217 neurology & neurosurgery
Abstract

Alzheimer's Disease Neuroimaging Initiative., [Objective] To study the neuropathologic correlates of cholinergic basal forebrain (BF) atrophy as determined using antemortem MRI in the Alzheimer disease (AD) spectrum., [Methods] We determined associations between BF volume from antemortem MRI brain scans and postmortem assessment of neuropathologic features, including neuritic plaques, neurofibrillary tangles (NFTs), Lewy body (LB) pathology, and TDP-43, in 64 cases of the Alzheimer's Disease Neuroimaging Initiative cohort. For comparison, we assessed neuropathologic features associated with hippocampal and parahippocampal gyrus atrophy. In addition to region of interest–based analysis, we determined the association of neuropathologic features with whole brain gray matter volume using regionally unbiased voxel-based volumetry., [Results] BF atrophy was associated with Thal amyloid phases (95% confidence interval [CI] −0.49 to −0.01, p = 0.049) and presence of LB pathology (95% CI −0.54 to −0.06, p = 0.015), as well as with the degree of LB pathology within the nucleus basalis Meynert (95% CI −0.54 to −0.07, p = 0.025). These effects were no longer significant after false discovery rate (FDR) correction. Hippocampal atrophy was significantly associated with the presence of TDP-43 pathology (95% CI −0.61 to −0.17, p = 0.003; surviving FDR correction), in addition to dentate gyrus NFT load (95% CI −0.49 to −0.01, p = 0.044; uncorrected). Voxel-based analysis confirmed spatially restricted effects of Thal phases and presence of LB pathology on BF volume., [Conclusions] These findings indicate that neuropathologic correlates of regional atrophy differ substantially between different brain regions that are typically involved in AD-related neurodegeneration, including different susceptibilities to common comorbid pathologies., M.J.G. is supported by the “Miguel Servet” program [CP19/00031] of the Spanish Instituto de Salud Carlos III (ISCIII-FEDER).

Published
2020

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